TheJimsterness

I know its a pretty common question, but i have a derelict 55g tank sitting in my living room, and I'd like to know if it would be big enough to house a healthy and happy oscar. I've heard that 75g is needed, but that seems a little extreme. I think I could pull it of with good filtration, water changes,and just one oscar.

TFA101

55 gallon tank+good filtration+frequent water changes= 1 happy healthy oscar

Iron waffle

48 gallon minimum with good filtration for an Oscar. So yes, go for it!

mathas

55 gallons with good filtration as an absolute minimum. I personally wouldn't go any less than 75g, but 55 is ok.

TheJimsterness

AWESOMO!!!!!

any advice on good filters?

mathas

With an oscar in a 55g, I would want a large canister filter with lots of room for biological media. Oscars produce a lot of waste, and you'll want a large colony of bacteria to process the ammonia/nitrites from that extra waste.

Barbrella

Totally agree.

A standard 55 is 48" long and 13 inches from front to back. An adult Oscar would barely have room to turn around and IMO, that is not humane.

Wilhelm Joshua Tan

They need at least 30 gallon.

TFA101

just out of curiosity, why do you keep an oscar in a 10 gallon if the minimum is 30?

Wilhelm Joshua Tan

According to Angel Ampil, an oscar need a 75 gallon aquarium.

TFA101

okay, so your oscar is in the 10 gallon because....

Shawnie

oscar in a 10 gal is = to a bull mastiff in a chiwawa crate

shellman 2

hey i have 2 oscars that are about 4 cm each how long will a 27 gallon last for them and 4 other fish (2 silver dollars 3-4 cm each, 1 gudgeon 5-6cm.)
please reply asap. thnx

MPrudent

About 1 day...you should probably look into getting a bigger tank starting tomorrow. OK GO!