I myself have 6 tanks, now. I have a 55 with 3 skirt tetras, 2 head and tail light tetras, 2 swords, 2 guppies and more fish as soon as i get to the lfs. I have a 2 gallon with a sunfish in it. I have a 10 gallon devided with 2 betta boys. another 10 with 14 guppy fry, another 10 with 45 swordtail fry and a Pleco who will be going to the 55 soon. I also have a 29 with 3 bullhead catfish, and mosquito fish in it. Sandy