Bettas and goldfish?

[morgangallow]

hey, so, a pearlscale gold fish in a heated, filtered tank. i was inquiring whether a betta would be too aggressive for the goldy? the goldy's fins are maybe an inch long at most. he's mostly just really fat. what do you think?

[Deleted User]

Goldfish actually don't need / shouldn't have heated water. They are cold water fish (ours stay around 62-68 degrees) and need about 20 gallons for the first goldfish and 10 gallons for each additional goldfish as a rule of thumb.

Goldfish and betta fish would not be compatible, for the reasons of temperature (bettas like it around 80 degrees), the amount of waste goldfish produce, and a completely different dietary requirement.

Sorry! It would be cool if they could co-exist healthily. They're some of my favorite types of fish.

[morgangallow]

aw, ok thanks Jill. this is why i ask. thumbs2: the gold fish is in a 20 gallon at a friends, and im trying to rehome my betta, so i thought it might work. i'll let them know about the heater too