Although, for a full tank shot for competition... can you imagine a massive wave of cardinal tetras or harlequins shoaling through the trees!??!
Totally, that would be amazing. im thinking of Graeme Edward's tank at TGM with the massive shoals of Rasbora. That should be an IAPLC submission for sure. Actually before Graeme's rescape that tank used to have a mass of Rainbows aswell.