Well I have a 20h that I plan to breed my albino bristlenose in,its heavily planted and has alot of wood, well I have a HOB filter currently installed and I know I need to replace it, I'm thinking a canister? Finnex makes a nice smaller one that I'm debating getting. And since its my only big-ish(I know its small but in my living situation its the biggest I can have) tank I'm hoping to have some upper/Mid water movement and I was thinking that since baby plecos are armored than I can keep small tankmates. I currently have platys in there but I'm debating trading them out, they don't fit the feeling of the tank. My lfs has a TON of different nano rasboras, I liked the look of those. Or maybe some blue eye forktails, those are always pretty. One last thing,(Its a huge strike against Te platys and a narrower of possible choices) my local tap water is about 6.0 ph, I can buy stuff to buffer ph but simply getting lower ph fish would be much prefered.