Water temperature..This man worked at a zoo..very intelligent..

Just as MT and Josh has said..they will bury themselves in hydrilla and eat the small prey..such as crayfish..JIGS..{-:

I personally thought that was too hot..but not according to the professioinals..Doug would rather hawg hunt in the summer than the spawn..
WHen I get home I'll post a great video link of DOug explaining this..{ -: