A sense of satisfaction = 'ordinary' fish

GaryE

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I was in my poorly stocked but very pleasant local aquarium store yesterday, and they had black neon tetras for the usual low price. They only carry the most popular bread and butter fish. I've really liked black neons (Hyphessobrycon herbertaxelrodi) since I first saw them in my teens, and it's a fish I have almost always had in my tetra community tanks. I always have one of those tanks.

I bought a new group of these fish a few months ago - six of them. And what gives me great pleasure is that I can now look into a tank in my fishroom, and watch 15-20 very young baby black neons as they are just starting to develop their colours and body shape. I like watching fry develop into fish, and then being able to move those fish into the community with the knowledge they started out in my aquariums. A fish doesn't have to be exotic, rare and expensive to be fun to breed. Shoaling fish like to live in larger groups, and you can start with a group of six and make a decent shoal out of it.

Right now, I have four homebred and raised bread and butter, basic tetras shoaling in my 120 gallon - cardinal tetras, Pristellas, glowlights and black neons. All should be easy to buy, if I want to just be a consumer. But there's a satisfaction in producing your own show - healthy fish that get to have a long run in a well set up tank.

I'm fortunate in having clean, soft water from my tap. Tetras will breed in it without my needing RO. I like to study each species to learn how to breed them, and I get a certain satisfaction from meaningless success. I used to really admire the doggedness of old time aquarists who had to pay a fortune to get these fish, before these tetras became cheap and expendable. They learned how to breed them and shared them within aquarium clubs or via the local stores. They used to get a little big feeling around the young 1980s aquarists breeding Cichlids and livebearers (an unfair attitude), because they had bred the difficult fish. They saw us as playing in the little leagues.

I always figured I'd try their challenges on, and I've learned they weren't all as soaked in wisdom as they pretended. There are very difficult livebearers, Cichlids and tetras, but there are easy ones too. As with everything, you build your skills by learning and doing. So I raise my morning coffee cup to the fishkeepers who could go out and buy more fish to make up a good sized shoal, but who decide to try breeding up a group instead. It's no use trying to impress other diehard aquarists by pretending you have some great knowledge and skill you don't - all you need is solid information from a couple of good sites, maybe some good garage sale books, and a bit of patience.
 
I haven't, but if I sense an interest, I might. I notice a lack of interest in fish breeding here, as not a lot of people have the space and time to get into it.
 
I don't know - i have a group of 20 or 30 with my b. cupido in a 180; i'm mixed about them for some reason i always prefer cardinals. A bit of natural eye candy - right now my favorite dither for larger aquariums is actually Anostomus ternetzi - but alas the group of 25 are in a 600 and not many people keep a 600 on their counter-top. Now that is a species i should probably dedicate a 200 and learn to breed. They are extremely interesting yet unlike most headstanders very peaceful and tranquile.

Oh well maybe one day - i have to see if i end up moving.
 
Usually, breeding reports are more precise than I can offer. I never use test kits. I use my city's water system quarterly reports (attached). All my tanks get weekly 30% water changes, and fish I'm considering breeding get a mix of flake, live freshly hatched artemia and bug bites, with the addition of white worms for targeted fish, and mosquito larvae and daphnia in summer. You can condition on flake alone, but results are poor. It isn't great food. Supplement with frozen if you can't get live.
Water hardness is crucial for the rainforest insect eaters I like. My tap is quite soft/mineral poor.
For black neons, I took a bare 10 gallon, and painted the bottom, two ends, and back black with dollar store acrylic paint. I filled it with dechlorinated tap, then added a snail free biologically active plastic box filter filled with wide pored sponge. I added a heater, to bring the temperature to 26.
I covered the bottom in 2 layers of marbles, so eventual eggs would fall through the gaps. Then I waited a few days to let the tannins I added -I confess, a rooibos tea bag - I have also successfully used decaffeinated black tea - settle in.
The tank has no light, but the room is bright.
A few days later I added the Hyphessobrycon herbertaxelrodi, black neon tetras. I never want hundreds of fry. I only have limited room. So I put two of each sex. I knew this would mean some eggs being eaten by the fish waiting to spawn, but usually, enough get through for my purposes.
And now it gets technical. The tank has a pane of glass top. Over it, I placed my high tech worn out black hand towel. It can cover the tank and eliminate all light, as the eggs and fry of many tetras are photo-phobic. They can die with exposure to light. The fish spawn in dark flooded forests in nature.
Later the next afternoon, I allowed some light in so I could catch and remove the adults. I kept that room light period as short as possible. Then, I had no clue what I'd accomplished.
I had tried twice before. The first time with this species, I got a lot of fry, but in the critical first days a human family member was hospitalized, and by the time she was well, the fry were gone. You have to feed them tiny amounts several times a day. The second time, weeks after, I got nothing. This third time, I waited.
The eggs hatch, and larvae cling to surfaces for a bit. I should be more precise, but it seems to be around 48 hours. I lift a corner of the towel after that period and peek in. If I see 'intelligent' movement - ie, something moving with a direction in mind, I take my trusty steak knife and an old pill vial of water, and put a knifepoint amount of hikari first bites or krill fines into the capped vial. I shake it and pour it in, several times a day for about a week, with the tank covered and no idea of how many fry I have.
Truly, it is barely enough powdered food to cover the point of the knife. Overfeeding kills.
After about a week - it took longer with glowlight tetras (Hemigrammus erythrozonus) - I begin to let light in and to carefully remove the marbles (so no one gets crushed). Pretty soon, I get a false sense of how many tetras I have. With this slightly successful spawning, I counted 5, but caught more than 20 a few weeks later. With the first spawning I lost, I must have had 60. Around this time, I begin to add freshly hatched brine shrimp. When I see the fry carrying pinky orange brine shrimp guts, growth will be rapid.
20 will do for my purposes. They'll make a good shoal, with a few extras for a friend who got interested. I "needed" ten to add to my existing group. There are many things I could do to get more. I got just enough glowlights and black neons, and close to 40 adult Pristella maxillaris out of this technique. With Cardinal tetras, it was harder, and I'll try them again in their natural breeding season in late November to January. With them, I used a second box filter filled with spaghnum moss (used by orchid growers - it absorbs minerals) and stained the water almost black with peat tea. It worked, but numbers were low.

And that's it. No wizard hats, spells, prayers or incantations involved. Just soft water (you could use RO), a custom painted tank, good and appropriately sized nutrition, and patience. Add a dash of reading about natural habitats because every species can have its own challenges (I've purposely started with similar species) and you're on your way.

As of yesterday, the breeding tank holds some Enteromius cf jae (probably an undescribed species, as there are significant differences compared to E. jae), a tiny red barb my friends and I caught in Gabon, in a darkly shaded flowing jungle stream. The tank is darkly shaded and the water is moving. This is try 3 for them, with 2 total failures on my record. At least with barbs, I won't need a total blackout - just shading, I suspect. There's only one way to find out...
 

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Do you separate genders of the breeders for a while before adding to the breeding tank? I always have and assumed it was a helpful part of the process.
 
I find it helpful, but I don't always do so. I have, in the past, bred fish on a sometimes basis to help out a local store. There, I wanted numbers and would separate the sexes. But for my little cottage industry here, I'm happy with smaller numbers.
 

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