Im upgrading my tank with new filters I'm currently running 2 emperor 400s and moving to 2 rena xp3s. My question is wont putting two brand new filters on there mess up my all rdy cycled tank?
I would have to disagree, but if OP wants to let it run for 6-8wks it definitely wouldn't be wrong.....just not necessary. In any case, a good water test kit will let you know definitively.I would leave them all running for 6 to 8 weeks, or use the media from the old filters. 2 weeks not long enough to cycle a new filter IMHO.
Won't work. Emperor 400 uses Bio-Wheels as a bio medium, so you can't just stick the Bio-Wheels into the canisters.Place the media from the hobs in the xp's and you are good to go.
Agree. Place the old media in the new filters or let them all run simultaneously for a much longer period of time (5-6 weeks sounds fine.) Very little BB is alive floating in the water column and the ones that are on the old media aren't going jump over there. BB are sessile bacteria meaning they primarily expand to areas directly adjacent to existing bacteria, like a vine, rather than spreading like a virus when you cough into the air.I would leave them all running for 6 to 8 weeks, or use the media from the old filters. 2 weeks not long enough to cycle a new filter IMHO.