Eheim Automatic Gravel Cleaner | My Fish Tank Blog
· The Eheim Automatic Gravel Cleaner is easy to assemble and comes with 4 Duracell batteries to power it (I cannot comment on battery life at this stage). After opening the box, it was only minutes before it was ready for use. On its first use, I spent several minutes cleaning about a third of the base of my tank. Then I detached the Eheim filter mesh and rinsed it under the tap. 'Stuff ...