How to Transition From HOB to Eheim Canister
I just ordered an Eheim 2215 for my established fully stocked, moderately planted 20 gal tank. Currently it is running with an Aquaclear 30 HOB filter with a pre filter sponge on the intake.
Once I install the 2215 I would like to use the Aquaclear HOB to start a 10 gal guppy fry tank. My challenge is that I need to seed the 2215 for my main tank and minimize a cycle of ammonia and nitrite.
Currently my HOB has two bags of biomax (the bio filter inserts), a rectangular sponge block insert and the pre filter sponge. Would it be okay to remove one of the biomax inserts place it in the canister and stretch the pre filter sponge on the canister intake to seed it? I could then transfer my HOB with the remaining biomax insert and sponge block insert to start my fry tank.
I've never opened the 2215 so am not sure there is enough room to add the biomax insert inside to the already existing Eheim filters. I do plan on removing the carbon insert so that probably will give me some room.
Thanks for your input.