What's the hold up? Space? Money? Attention? It may be time to upgrade girlfriends, I think you've exhausted the limits of this one. Besides, everyone getting into the hobby has multi-girlfriend syndrome at some point. /jkthe guy said:I know it's not ideal but I can't convince my girlfriend that I need at least a 5 gallon tank for dwarf crayfish. She'll only let me use a 3.5 gallon we have lying around. Opinions?