Showing posts with label aquarium fish. Show all posts
Showing posts with label aquarium fish. Show all posts

Wednesday 8 February 2017

Keeping and Breeding Tropical Fish: From Angelfish to Killies

Angelfish (Photo: Public Domain/Pixabay)

When I was a boy and in my early teens, besides various caterpillars, silk-moths and stick insects, I also had a lot of tropical fish. In fact, I had tanks all around my bedroom. I used to breed many species of fish, including angel fish, keyhole cichlids, golden barbs and paradise fish.

Keyhole Cichlids

Some types of fish eat their eggs and so it was vitally important for me to be able to get the parents out as soon as they had laid their eggs. I used to stay up into the early hours watching for this to happen. My mother used to get annoyed and would tell me I should be asleep because I had school in the morning. I never cared about school because my insects and fish were my world and what was important to me.
It was in my early teens that I really got into keeping tropical fish and had a school friend called Roger Wiggins who used to keep tropicals too. We used to read magazines for aquarists and find out about fish farms in America and read about specialist breeders of difficult species, and we would fantasise about one day running our own tropical fish businesses. By that time I had started selling surplus fish that I had reared in the tropical fish shops in Cardiff, and sometimes I would supply them with bags of water lettuce, a floating plant I used to get so much of it covered the tops of the water in my tanks. They never used to pay me much for the fish and plants but it was a boost to my ego to be able to think I was successful at being a supplier, even if on a really small scale. The men that ran the shops knew that I knew my stuff too. It all appealed to my youthful sense of pride.
Roger and I used to order exotic aquatic plant species from mail order companies too. It was exciting seeing what the plants were actually like and to find out how well we could grow them. Often enough our efforts failed but that did not stop us. I remember being fascinated by the names we read in ads and wondering what these plants would really be like. Some like the aptly named four-leaf clover turned out to be really great and easy to grow aquatic plants but others just withered away.

Four-leafed Clover

I also remember going to Newport to a tropical fish shop in the Pill area of the city. Tachbook Tropicals I think it was. It was worth making this trip by train, not just for a day out, but because for some reason this shop always had fish you could not find in any of the shops in Cardiff. I remember getting an Egyptian mouthbreeder or mouthbrooder and a skunk botia from Newport.


Egyptian Mouthbrooder

The mouthbreeder was a female and I had her for years. Sadly I never managed to get a male and though she used to spawn on her own her efforts were wasted because the unfertilised eggs died and after she realised this she ate them. It was sad seeing this dedicated mother fish with a mouthful of eggs, not able to eat and expecting her eggs to hatch into tiny babies but never have any hatch out. My Auntie Elsie from London who used to often visit used to call this fish “Ugly” but I couldn’t see why. But it was a male I needed and for some reason every time I saw these mouth-breeders for sale there were never any males. There were unexplained mysteries in the tropical fish business. In Cardiff they were never on sale in either sex. I never understood why because it was an interesting fish, easy to keep and in most tropical fish books.

I remember something else that happened that involved my Auntie Elsie and a fish I had at the time. It showed me something about how human opinions can be so very wrong and how animals and plants are built to survive and repair themselves if hurt. I had an upside down catfish.

Upside Down Catfish (Photo: Neale Monks)

These fish are named that way because they do swim upside down. The one I had was a greedy fish and was always on the lookout for more food but one day it had a terrible accident that was to cause it to stop eating. What happened was that for some reason, which I cannot remember, the fish was very alarmed and dived down fast towards the bottom of the tank. In its speed it failed to watch out for a jagged rock and cut its belly open. It was really badly hurt because I could see its innards that spilled out through the cut it sustained. My Auntie saw me upset and asked what was wrong and I told her what happened. She took one look at the catfish and said I should do the right thing, and put it out of its misery, because there was no way it would survive. I didn’t want to kill my fish. I hoped so badly it would get better. I decided to give it a chance, though I could clearly see that the odds were against it pulling through. My catfish retreated to a corner of the tank, stopped eating and swimming about and just stayed there, hanging almost motionless in the corner. The days rolled onward and the fish didn’t die. It didn’t resume its normal lifestyle of swimming around and looking for food but it didn’t die. What happened was a miracle. The guts of the fish were very gradually being pulled back inside its belly, and the skin was closing over. Eventually, after about a week, wound had closed and all was left was a scar. The catfish gradually started to take an interest in life again and moved around in the tank, and most importantly, began eating again. Within a few weeks, it was back to normal and even the scar on its belly vanished. I was so glad I had not listened to Auntie Elsie, and that I had given my fish a chance.

Nothobranchius rachovii male (Photo: Andreas Wretström)

But getting back to my friend Roger and our shared hobby; we had an ongoing mystery. You see, we never saw any killifish for sale, though we read about these unusual fish in books and magazines. Because of their habits of laying eggs that need to be kept semi-dry to replicate the conditions in the wild where ponds dry up, we assumed these species really were so difficult that this is why they were not available in South Wales. These were fish it was probably too hard to keep and breed. This is what we thought was the reason why people do not keep killies. Many years later I was to find out that this assumption was wrong. It was possible to order killifish by post, as eggs or adult fish. Some types were very hard to keep but others were easy. I became a member of the British KIllifish Association in the 1990s. This meant I received the society’s monthly journal and could read the ads and respond. I could order eggs from other members. The killifish eggs were in peat and used to be contained in small plastic containers or in plastic sachets. They could be sent through the mail this way. The excitement came from hatching the tiny fish out and seeing if you could rear them successfully. Some types like the Nothobranchius species were exceedingly colourful with the males having red tails and bright blue bodies. I was successful in breeding and rearing quite a few species, including some of the larger bottom-spawning aphyosemion species, such as the Blue Gularis.



I was proud of my success with these fish. I sold a lot to a local fish shop where I knew the owner Neil. Sadly though he was to tell me that many of them died. I never sold him any more after that. These fish I found easy to keep could not survive in a tank in a shop. perhaps they did need specialist care after all?

I have another fish story I would like to share. I had a pair of some type of mouthbrooding cichlid. I say “some type,” because they were not identified when I bought them and I never did find out what they were. There are a lot of African mouthbreeder cichlids and these were mostly a yellowish colour and it was clear which the male was because he was a lot bigger and he used to dig pits in the gravel, which is something male fish do to attract mates. I also could see that the other was the female because the fish used to breed but sadly, for some reason, I never discovered, they always lost their eggs which failed to hatch. Nevertheless, this pair of fish seemed OK in my community tank and never bothered other fish I had. I mention this because many cichlids are known for being aggressive and cannot be kept with other species. But all of this, I have just told you, is not what this story is about. What I really want to share is what happened when the female fish died. I cannot remember what was wrong with her but I can vividly remember what happened to the male. It was as if he lost his will to live, like a brokenhearted human it seemed he no longer had any reason to be alive without his mate. Now, what you probably don’t know is that there are many fish that are monogamous and faithful to their mates. There are fish that mate for life and are far more loyal to their partners than many married humans can be. Anyway, what happened with my male cichlid, and how I could see he was grieving badly, was that he stopped eating, stopped showing an interest in swimming around the tank, stopped digging in the gravel, and like the upside down catfish I have already told you about, he went into a corner of the tank and just lay on the gravel. After seeing him behave this way for several days I thought he was pining away and would die, but I was wrong. Something amazing happened that showed that fish can respond to humans and that one species can communicate with another.


My friend Sioned used to call at my house on a regular basis. One day she called round and had gone in the kitchen for something, which was where the tank was I had my cichlid in. She asked me what was the matter with my fish. I told her that he was very sad and grieving because his wife had died. I said I thought he would die too because he wasn’t eating. Sioned was horrified and said she was going to see if she could help save him. She started gently tapping on the side of the tank and talking to the fish through the glass. My friend repeated this every time she visited which was every day that week. My heart-broken male cichlid began to respond. He left lying in the corner and would come over to see Sioned through the glass pane. Eventually after a few days he started eating again, and swimming about. He even began digging in the gravel. probably in the hope that his mate would somehow return, or maybe to attract a new mate. This never happened, of course, and I was unable to get any more of this type of fish, though I looked in the local tropical fish shops. As a result of my friend Sioned spending time trying to talk to my male cichlid and succeeding, he went on to live many months more.

Footnote: The story above is taken from an unfinished book of memoirs about nature.

Sunday 29 January 2017

My Vanishing World

Endangered Species in a Vanishing World


Llandaff Weir (Photo: Steve Andrews)

Throughout my life I have been very sadly watching the natural world being destroyed bit by bit, pond by pond, forest by forest, field by field, habitat by habitat. Most of this is done in the name of ‘development’ and ‘progress’ and even in the name of safety, e.g. when trees are felled for being potentially dangerous and ponds are drained because a child could fall in and drown. These are the sort of reasons given for destroying part of the natural world, and each part that is destroyed was the home for many species of animal and plant.


As a child and teenager who delighted in the wonders of nature I was discovering, I never dreamed that once common birds, animals, insects, fish, reptiles, amphibians and wild flowers would become rare or even endangered species. But this has happened. Here in the UK, the decline in wildlife is truly alarming.


Small Tortoiseshell, a once common butterfly (Photo: Public Domain) 


The honeybee is having problems all over the world, and the new term “colony collapse disorder” is in use to describe their decline. Once common butterflies, like the small tortoiseshell are no longer frequently seen. The numbers of the house-sparrow and starling have dropped drastically. Both these birds used to be seen all over cities and towns and were regular visitors to most gardens but not now. The common lizard isn’t common. Ask yourself this: when did you last see one? Perhaps you have never seen one! The hedgehog, which used to be often seen in gardens, and often seen as a victim of road-kill is not even seen dead on our roads. There are so few hedgehogs about they are not there to get killed by traffic any more. The European eel that I remember seeing in their millions as elvers coming up rivers and streams each year is now listed as a critically endangered species.

Habitat Destruction

Habitat destruction is a massive part of the problem, and it doesn’t have to be tropical rainforest that we need to worry about, although of course the destruction of our jungles is a very alarming threat to the world’s wildlife and ecosystems. Natural environments much closer to home are continuing to be destroyed.

Llandaff Weir


Where elvers once climbed (Photo: Steve Andrews)

In Llandaff and Fairwater, in Cardiff, where I was brought up, there used to be many places where you could find newts, frogs and toads. In other words, there were a number of ponds available for them to breed in. I remember a large pond behind what was then Waterhall School in Fairwater but that has long gone. Right next to Llandaff Village is the River Taff and Llandaff Weir. When I was a boy there were two ponds on the river bank that supported newts, frogs and toads. There were also sticklebacks, as well as various pond snails, water beetles and dragonflies and damselflies that called these ponds their home. Both ponds were destroyed many years ago. The ground was bulldozed flat or made into embankment. Where did all the amphibians go when they returned in spring to find their breeding pools gone?

Elvers
I went along to Llandaff Weir recently with my friend Roger and we were looking at where the ponds used to be and also at the river and the weir. I remember when the elvers used to leave the water and slither their way up the wet concrete and stonework at the edge of the weir. There used to be so many that it was easy to fill a bucket by putting one under the mass of wriggling elvers and dislodging them into it. Every rock in the river would have an elver or elvers under it. This was normal. Now this species is in such small numbers it is listed as critically endangered, as already pointed out.




As a  matter of interest, the River Taff was terribly polluted when I used to go there as a boy back in the early 1960s. The water was black with coal dust from the mines up the Valleys, it foamed with detergents washed down in drains and the mud was also black and had an awful stench. No water plants would grow in the river. Amazingly though, there were minnows, bullheads, stone loaches, sticklebacks, and roach, all to be easily found doing surprisingly well at that time. The minnows and bullheads were the biggest I have ever seen, and this was really surprising because both these fish like clean well aerated water. I think the reason the fish thrived despite the terrible pollution was because of the vast numbers of tubifex worms that lived in the mud.  I used to carry this mud home and put it in a container and let it dry out. The pink or red worms would form into tangled balls as the mud dried out. This made them easy to remove, and after washing them they were ideal live food for the many tropical fish I used to keep.






I don’t know what fish live in the cleaner River Taff as it is today, although I do know that salmon and sea-trout can be seen jumping at Blackweir which is another weir a mile or so downstream. The river has improved in many ways but at the same time it has lost a lot. It has lost at least two ponds that were once on its riverbanks.

This story illustrates well the reason why it makes a great contribution to wildlife conservation if you have a garden pond. The more garden pools there are the better because they can serve as a partial replacement for the ponds that have been destroyed.

Sunday 4 December 2011

Catfish are the bottom-feeders


Walking Catfish (Clarias batrachus) 

There are very many fish known as catfish in the world and most of these have whisker-like barbels that have earned them the name. Lots of the species found in the tropics are popular with tropical fish enthusiasts who like to keep them in their aquariums as pets. There are some really weird species of catfish such as the Walking Catfish and the Glass Catfish, and yes, the former travels over the ground and the latter you can see through!

I know that when I was younger and had a whole lot ot tropical fish tanks that I had a growing collection of various types of catfish. They fascinated me because of their unusual appearances and behaviour. I never saw any types of catfish as ugly though I am sure many people might view them that way.  On the contrary I find their whiskery faces rather cute.  I also really enjoy watching catfish rummaging around looking for food, food that other fish have missed out on.

Many people think that catfish will keep a tank clean and that they live on the dirt that accumulates but this is not true. Catfish need proper food just like other species of tropical fish. It is just that many types of catfish are adapted to search in the bottom substrate for food that may have escaped into it. This is where their barbels come in handy. Some types of catfish have sucker mouths that are used for grazing on the algae that grows on rocks, plants and the glass sides of an aquarium. 

Catfish are the bottom-feeders

Copyright © 2012 Steve Andrews. All Rights Reserved.

Wednesday 30 November 2011

Livebearers are tropical fish such as guppies, mollies, platies and swordtails


Sailfin Molly (source Wikipedia) 

The Guppy is a very commonly kept tropical fish, as is the Platy, the Swordtail and the Molly. All of these fish are livebearers which means that the females give birth to baby fish unlike most types of fish that lay eggs.
This makes the live-bearing tropical fish easier to breed and keep. many fancy varieties have been selectively bred and you can get Veiltail Guppies, Red Swordtails and Black Mollies. In the following hub I take a look at all the different types and some of the more unusual livebearers too, such as the Halfbeaks.

As a boy and in my teens, I used to have a lot of tropical fish tanks, and keeping livebearers was a very important part of my hobby as well as keeping the egg-layers. I think that, like many people, I started out keeping Guppies and Platies and the other easier types of fish to keep and breed. It wasn't just that they were so easy to breed because I found them fascinating to watch too.  And, of course, many of the livebearers, such as the fancy guppies, have spectacular colours and fins too. Some types, such as the already mentioned, Halfbeaks, certainly wouldn't win any fish beauty contests, but their very unusual appearance guaranteed them a place in my tank.

It was exciting watching the pregnant females of my livebearer tropical fish get bigger every day because you knew that soon they would have their babies. Taking precautions so that the tiny fry didn't get eaten was another important part of it all.

Livebearers are tropical fish such as guppies, mollies, platies and swordtails

Copyright © 2012 Steve Andrews. All Rights Reserved.

Sunday 27 November 2011

The Gouramis are interesting popular tropical fish to keep


Giant Gourami

There are many species of Gourami. Gouramis are tropical fish from Asia that are often kept by tropical fish enthusiasts. Most species are bubble-nest breeders, meaning that the male gourami blows a nest of bubbles into which the female's eggs are laid or are placed. The male will then guard them.
The largest species of Gourami is aptly named the Giant Gourami and can grow to over 2 ft.

I used to be fascinated by the various gourami types because of their unusual breeding habits in which the males build floating nests of bubbles and also because of their unusual appearance. I like to watch how these fish use their 'feelers' and also how they rise to the surface to gulp air from time to time. All gouramis are Anabantid or Labyrinth fish, and have the ability to survive in water that is low in oxygen because they can also make use of atmospheric air to breathe. This ability is linked with the bubble-nest huilding of the male gouramis too.

I never had any Giant Gouramis in my collection because I knew they would grow too big. I used to like to see them in the show tanks at the local aquarium shop though. I used to dream of one day, when I was grown up, of having big enough tanks to keep these massive fish in, and all the other very large species of tropical fish that you can get. Not having the space meant that I had to be content with keeping Dwarf, Thicklip and Blue Gouramis, the species that could be housed and bred in aquariums that I could afford to have and that my mother would allow in my bedroom.

The Gouramis are interesting popular tropical fish to keep


Monday 21 November 2011

Live food for tropical fish to get them in good condition for breeding


Culex mosquito larva

When I was a boy I used to love to keep tropical fish and quickly learned that if I wanted to keep them healthy and to breed them then live foods were essential. Bloodworms, tubifex, mosquito larvae and daphnia were all excellent foods but my favourite was the humble earthworm and the fish liked them a lot too! I used to spend a lot of time finding food for my pets.

Water butts were a great source of mosquito larvae and blood-worms. Tubifex I collected in the black stinking mud of the River Taff and daphnia could be netted in local ponds as well as being quite easy to breed in containers of stagnant water.  Earthworms, of course, came out of the ground.

There were techniques you had to learn or come up with in order to get enough of the live foods your fish needed. I remember leaving large dollops of mud containing tubifex worms to dry out. The worms would form into large masses underneath in an effort to conserve moisture and were easy to pick out and then to swill under clean water before feeding to my fish.

Mosquito larvae present a challenge because they will quickly swim down into the depths of any water they are in if they are disturbed. The trick is not to disturb them and to quickly skim or net the wrigglers from the surface.  Bloodworms can be harvested like Tubifex or can be carefully picked out of the tubes of mud and muck they make.  Daphnia can be netted using a fine gauze mesh in the net you are using.

Newly-hatched brine shrimp nauplii were the best food for tropical fish fry. 

Live food for tropical fish to get them in good condition for breeding

Copyright © 2012 Steve Andrews. All Rights Reserved.