I don't like using a black light for long periods because it can cause the fish to slowly become blind
I wouldn't necessarily discount that.
no, they are simply GM zebra danios. I only have a 20gal. tank and didn't want to take up half my bioload with 5 fish. They are so energetic that, IME, keeping them in less than 20gal. can cause them to get injured from constantly hitting things. I've also had them get stuck in ornaments and asphyxiate, so make sure plenty of hazard-free "freak-out" room is given. They can have fairly small bioloads, depending on how much you feed them. also, make sure the temp doesn't go too high, I've lost some to that too.How much space do they need? Is it in goldfish proportions?
If you're refering to my post, I'm not discounting it.
In this hobby, we never stop learning.
I simply asked for a link to continue the learning process.