hey i have a 130 gallon tank i have three filters that are for a 100 gallon fish tant and i only have 3 tiger oscars and 1 albino oscar and i was wondering if i can put a catfish or something else in there idk if its maxed out guy at petsmart said you need 25 gallons per adult oscar and my oscars are just 3 inches thanks!!!
In my 75g I have a oscar with a 8" tire track eel with an Fx5 and Im doing 50% water changes a week. If I dont keep up with the water changes my oscar starts to show HITH.
I would say it would be fine to have a small catfish in there at the moment, given that the oscars are only 3 inches. But really once they are all fully grown that tank could fit 3 oscars only