Submersible

[missyme06]

i need a submersible filter for my 100 gallon stock tank, where i keep my koi in the winter.
any seggestions??

i don't want to get a canaster, a side hanging or any thing else that pulles the water out of the tank to filter it, the tank is in my garage and while the 100 gal tank wont freeze smaller amounts of water will.

 

[MilitantPotato]

Hydro sponge filters and a large internal filter would be what i'd do if I was going your route.