a cup or two of sand in a corner may help.
Place one or two cups of sand in a container and cover with plastic. Get the covered container to an easily accessible corner of the tank and open a small hole in the plastic and pour out the sand in the corner.
He may go for the sand and possibly be good in a day or two.
Place one or two cups of sand in a container and cover with plastic. Get the covered container to an easily accessible corner of the tank and open a small hole in the plastic and pour out the sand in the corner.
He may go for the sand and possibly be good in a day or two.