1journeyman
Active Member
Anyone seen this in use? I'm looking to add a mechanical fliter to my 210 gallon. My rocks are looking a little "dirty".
Eheim Professionel 3 Canister Filter
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mudplayerx
Active Member
I don't think the mechanical filtration helps a whole lot. Unfortunately I think you will just have to clean your rocks from time to time with a powerhead and/or a toothbrush. My two 330gph hang-on-back filters really don't even make a difference on my 55 gallon tank when I run carbon for 2 weeks at a time. I think a lot of the detritus comes from the critters in the rocks themselves.