Or maybe you can just add about a dozen maxican turbos. They are diatom eradicating machine :P Atleast the diatoms will be taken care of in a matter of days.
Hermits are evil

Zebra ones are great but they are expensive!
P.S. Turbos can get really big and can ramp down rocks and frags unless they are placed properly with glue/putty/center of gravity
