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Eheim 2215 impellet in a 2217?
Ok so I might have gotten a bit overzealous with my filtration. I bought an eheim 2217 to filter my 20L. Now the flow is making the tank crazy even with a custom spraybar that I made. Currently I have the outflow limited by about 1/3 of a turn but I am afraid I am putting a lot of stress on the motor. Can I switch out the 2217 impeller with that of a 2215 to reduce the flow or would this be a bad idea?
Planted Tank Guru