Yes.they get along great
No,because they will eventually be frogs and will grow too big for the tank
sponge bob are you sure? This is the question person BTW. I can't even think straight. I keep thinking that it's like Arthur or the Weekenders or something like that.
African clawed frogs become very big frogs when they reach adulthood. I would say that 2 frogs max would make for a healthy tank.
No.
As long as you have your tank heavily planted, the frogs should be fine.
back to school mr bean
I dont think so.
No. Unless you put it in a tank with sand.
a big fish tank .
Yes, some frogs are specialist frog predators. As a general rule dont mix frogs that are significantly different in size. If you think that one frog could fit in the mouth of another frog, it probably will. Dont over crowd the tank either. 3-4 frogs in a three foot tank would be plenty depending upon the size of the frogs.
Have the tank pumped out and cleaned by a tank cleaning service ( average cost, about 160 -220 )