Hello, I've been away from the aquarium hobby for a few years but have gotten that itch back, I need aquariums in my life lol. I'm already going on a 75 gallon planted and am planning the fish stock. I want to do an Australia type tank ( or as close as I can get, being in the US and all). I am going to get a group of 8-10 Maccullochi dwarf rainbows and I want the second main fish to be Empire Gudgeons. Really the only thing I'm undecided on is how many gudgeons will work in a 75 gallon. Does anyone have any opinions on this? Also, if anyone has any suggestions for another Australian fish species that would work in this se