Hello, as you may see I'm new to MFK and would like to try out Oscars as my first large fish. How big of a tank do they need? Any other questions I'll get back to you. Thanks.
x2, minimum tanksize means maximum maintenance...knifegill;4554262; said:90 gallons to have a good time, 55 gallons if you like exercise. But I only concede to the smaller size knowing you'll upgrade once the fish is longer than the tank is wide. My O is in a 125g and that's just right.