An update on my tank:
My 30 gallon tank (which should be done cycling soon, as I am on day 9 after the Tetra SafeStart) has 6 danios and 3 male guppies. The fish all seem very healthy and happy. I am no longer having this bully danio issue, since I added the additional fish.
It's a longer, shorter tank, 12 inches tall. I've also got a new
canister filter (it's a Fluval 205 - I'm taking back the Penguin 200), and I have the old media in the tank currently, so that I don't lose the bacteria.
I thank you all so much for getting me to this point. My tank would have been a disaster without you guys!
So I'm thinking about how to complete my tank. I was thinking of perhaps 8 neon or cardinal tetras and a dwarf guarami, which would bring my count to 18 fish total, slightly overstocked. But then I was reading about the tetras, and I am worried about being able to keep them alive. So then I was thinking of swordtails, but I don't know if they are compatible with my danios and guppies.
Any advice?