Hello everyone, I'm looking for some recommendations on small lively fish that would do well in a planted 30cm cube. The cube has CO2 injection, LED lights which would qualify as medium light, lots of filtration/flow ( a small eheim canister and an HOB) Substrate is sand with a center "island" of stones aquasoil and plants (blyxxa, scarlet temple, hygrophila pinnatifida, and baby tears (HM)) I have been keeping some dwarf emerald rasboras (http://www.seriouslyfish.com/profile...micron&id=1344) who are neat little fish, but much too shy for the tank. I never see them. They duck behind the plants any time I walk by. The tank is in a high traffic spot, so they spend much of their time hiding well. The tank also has some shrimp in there, RCS fire variety that may have hybridized with some blue pearls. Thats a whole other story.... Anyways, some recommendations would be very nice. I like to use the seriouslyfish website, but if we followed all of their recommendations all of our tanks would be biotopes with only sand or gravel for substrate... The dwarf emerald rasboras will be going to a more densely planted 12 gallon in which I plan to add a number of dario dario's as well. What should go into the 7.5 gallon 30cm cube?