I have a 10Gal Betta community & I'm in the proccess of stocking it with 5 habrosus cory's (have 2 so far, waiting for another shipment) as well as 1 spixi (zebra apple snail) & waiting on finding a Mystery snail as well.
But I won't go more than 3 more cory's & 1 more snail, even after 2 days with 2 cory's & the snail in there my tank is ready for a 25-50% water change.
Now I've heard from lots of people that snails are more of a burden than ADF & shrimp but I honestly personally find frogs & shrimp creepy! LOL
anyways hope this helps!
I'm not sure, but I think African clawed frogs are social too. They also grow HUGE. Wouldn't even bother with two in anything under 40ish gallons. They also can't be kept with anything that they could eat easily. A pair of dwarfs could share a 5 gallon no prob, 2 gallons per frog is the usual.
Pet stores can often mix these two up. The easiest way to tell them apart is that ACFs have no webbing on their front legs, while ADFs do. Most in store ACFs are also albinos.
A couple years ago I kept two ADFs with my beta before and he HATED them. The first day I added in some tank mates, he goes and bites one of the frogs (he looked really curious on what the heck it was). It kicked him. (they avoided each other afterwards)