I now have 4 tanks 2 salt and 1 fresh(1 not setup). I went out today and bought a 25 gallon tank. I am hoping to make it fresh so I can have an even amount of each. I was thinking of doing a species tank. My other freshwater is a community tank. Any ideas? Maybe some cichlids? Never liked em b4 but they are actually pretty cool. or maybe pirahnas? I like agressive fish but fish that can handle their own species. So any ideas or info is welcome! 