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Fenbendazole is part of some dewormers for pets so just have a read through the ingredient list on the package of some of the products. Flubendazole, which is also the active ingredient in some dewormers, also seems to work for many people.
You don't need the pure stuff, just be careful with...
The substrate should be ok. As far as I know it is not leaching large amounts of ammonia into the water at the start as some of them do (which helps the plants grow and to establish the nitrogen cycle in newly setup tanks)
The only problem I can see is that the sand being finer and heavier will...
Fine sand is best if you want to keep apistos. Most aquarium sands that you can get from pet shops or (much cheaper) from landscaping places will do.
Just make sure that it doesn't contain sources of calcium carbonate such as crushed sandstone or similar. You can test it by keeping some in a...
While the alder cones and leaves will not significantly increase the conductivity the api buffer will, which is not a good thing if you want to keep soft water fish, so I would stay away from that one.
Just keep on testing individual components in the tank as you did, eventually you should find the culprit.
If it turns out too difficult to identify what causes the rise in pH you can still go with alder cones or similar, you may just have to keep on checking the pH and replacing the cones as...
Try to find out what raises the pH in the tank. In most cases it is a source of calcium carbonate such as she'll grit, coral sand, marble, sandstone, limestone etc. In some cases it can be something like cheap plastic ornaments in the tank.
Once you remove the source, the pH in your tank should...
A. borellii and A. trifasciata are found in subtropical regions with water temperatures in winter below 60F.
You may want to lower the pH in your tank though, otherwise it will negatively affect the long term health of the apistos. Try to get it below 7 and you should be all good to go.
If you are adding salt, make sure it is pure NaCl. The commercial table salts contain anti-caking agents. As the salt is relatively unrefined it may also contain carbonate or bicarbonate which will affect the pH. Adding pure NaCl will not change the pH.
Alternatively you can try to get some...
Depending on the layout of the decorations and shelters in the tank you could try two females and a male but a single pair would probably be the safer option.
With the choice of dithers/target fish you will have to make sure they aren't eating the fry. Most pencil fish are a safe option, most...
The first one could be A. hongsloi. The second one I am not sure.
Well, I am not really sure with the first one either, so I should probably say I have no idea for the second one...
Sorry I can't be of more help
The elizabethae will require really soft and acidic water to do well, especially if you want to breed them. The trifasciata are less demanding, they readily bred for me in water with 250uS and pH 6
Well, the tank is big enough for all apistos. What is your water like (GH, KH, pH)? This may limit the species selection somewhat. Otherwise it may depend on what is locally available or can be shipped easily. Where are you based?
there is no need to have a 2L bottle as a hatchery, smaller setups work just as well.
here is what I use
just a few glass jars with holes poked through the lid. they sit in a waterbath with a heater hiding in the black pipe at the bottom to keep the temperature up in winter
to harvest, I just...
Yes, rinse off the brine, otherwise you will end up raising the conductivity/TDS in your tank which is what you want to avoid in a soft water tank.
I siphon fry after 2-3 weeks. They have grown and are more robust by then but are still not strong enough to escape the siphon, they also stick...
I have heard of other people doing it but don't have any first hand experience. I have several smaller hatcheries going in parallel, each one holding enough BBS to feed all the fry in my fishroom. I stagger starting the hatcheries so that I can harvest every 12h or so, that gives me the two...
The breeder box is not ideal, as other fish in the tank may still be able to get the fry trying to suck them through the net or damage them in the process, another tank is the better solution. But if that is not an option see how you go. If there are too many problems an acrylic breeder box to...