Just picked up these 3 oscars the other day . Two red oscars and 1 tiger, growing them up together and then keeping the two reds for my 125 g setup and getting rid of the tiger. There currently in a 20 gallon long for quarantine and most likely grow them up in this tank for a while till there about 4 inches or big enough to go in my 125. The quarantine tank is filtered by two sponge filters and a hang on back. Will be posting more of these guys as they grow!