BILL, FENDER HAS 3 AND 5 INCH BASS. SO ITS SAFE TO PUT IN 30 NOW? ALSO MY HALF ACRE POND FOR STRUCTURE I HAVE 3 SMALL TREES LAYING INTO THE WATER AND ONE SMALL ROCK PILE, THERE IS ALSO ABOUT A 20 FOOT PATCH OF GRASSY AREA IN LESS THAN A FOOT OF WATER, IS THIS ENOUGH FOR MY POND? I HAVE LOTS OF FAT HEADS RIGHT NOW.IS THERE ANYTHING ELSE I SHOULD DO?