#rasbora

Hi i need help with my tank. i done a 20 present water change today. treated the water before adding it into the tank. i also added fertiliser for my plants. couple of hours later 2 of my rasboras are upside down trying to swim. they started at the top of the tank floating. the rest of the fish...

I started out with 3 of them got 3 more , and I have slowly been seeing them die one by one . I think I have only 2 maybe 3 left out of the 6 and it’s only been 6 days . Tank is cycled and heavily planted , the other 2 that I can see seem to be doing fine , the 3 rd one is surfing the back by...

I'm experienced in fishkeeping. I'm redoing my aquarium, and having a tetra tank of about 100 tetras. I know the general rule is 6+ per kind of tetra. Would I be able to do 4 of each kind up to 100 fish? Would this work? I know less than 6 of each kind usually means there could be aggression but...