We have a 3 year old RES, in a 125 gallon tank that's about 75-80% filled. Lately, he will be at the bottom of the tank...and nibbling at the black plastic edges on the inside. So much so that big chunks are gone. Is there something that can be done to get his attention elsewhere? It's like he is trying to break out!
Any advice, or suggestions welcome.
Thanks,
Dennis

