My dad today was at Walmart and he saw freshwater crabs for sale. When he came home he told me about them and really wants me to get them. I have only a 10gal tank. It is very overstocked due to platy fry (I'll be getting rid of them soon) and has no cover. I've done a bit of research, and I have no worries on the crab getting fed, but my tank is lidless and there's nowhere for a crab to surface. I'm very worried my dad might come home with a surprise crab (He's done stuff like this before!) so is there any way I could prepare for a crab buddy? Oh, and the reason there is no lid on the tank (And that I can't get one) is because I have pothos in it that HAS to have it's leaves out of the water and roots inside, so I have no way to keep a secure lid on. Please help, my dad is more stubborn than a mule, and since he's not home right now, I could have a crab within the next hour. Fish Lords help!!!!