If you want to keep the shabunkin, you need to get a large pond. But I would recommend rehoming it to avoid all the trouble. And you'd need to upgrade to a 120 gallon+ tank for the clown loaches. But they grow slowly so you'll be fine for the time being.
African Clawed Frogs will eventually become huge and eat any fish that fits in its mouth. During youth it will bully what it can as I've had a bad experience with them