Like the title says I'm looking to start up a Monster Geo tank. It's something I've always wanted to do but have been busy with other cichlids. The big question is I want to house about 15 or so but I really need to know what footprint of a tank I should be looking for. I've got connects to the fish just need to know the tank size. Plan on running Two fluval fx5 and maybe a powerhead or two. Any helpful tips would work thanks