Hydra Aquatics Sponge Filters

Compare to the Hydro sponge in shape but with some added features and a lower price:

-heavy weighted base actually makes them sink

-smaller diameter lift tube drives more water and reduces the number of fish that get stuck in the tube

-built in air stem and diffuser takes are to the bottom of the filter for better flow and complete use of the sponge

-dark black in color

#147   5 gallon size  $4

#145   10 gallon size  $6

#148   20 gallon size  $7

#146   30 gallon size  $7

#149  50 gallon size  $8