Who Gives A Fish Forums

I skipped changes for a month in my 40 gallon community tank, thinking the plants would handle it. Ended up with a nasty case of cyanobacteria. Now I'm back to weekly changes, no questions asked.

I've got a 120 litre tank coming and I've reserved a pair of kribs to go in it. When I asked about tank mates, I was told Corys, tetras and rainbow fish would be alright. But I'm pretty sure I've read on here before that Corys aren't a good idea. I've been doing some more reading and now I'm ...