I dont know about lazy, that is just pretty much what a frog does, is sit, and wait......on food then they wait again.....for more food. That is it. They do not sing and dance. And good luck my african bullfrog tears the hell out of his tank almost every night. If I plant a plant within 48 hours it is demolished and never in the day. I do turn dubia roaches loose or super worms or night crawlers so he burrows thru the dirt at night to see what he can stir up. He has a 20 gal that is divided 1/3 pool and 2/3 substrate. A couple pieces of drift wood.