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I saw on youtube where this guy drops a few raw pieces of shrimp in the tanks he has running without fish to keep his filters cycle.I'm seeding (6), 125g rated sponge filters for a big move (all my tanks to a temporary home while I build a new house). I put them in a trash can with 45g of tank water from a cycled 210g. Have them up & running and just squeezed out a nice cycled sponge filter in the can with the new ones. Anyone have a thought on how to "feed" ammonia for the next 3-4wks to get them cycles 100%? I was thinking like a fishless cycle with pure ammonia? Or a handful of feeders but don't want to risk any disease.
hello; I do not have an answer I can support or back up in any way other than make a guess. The often claimed notion is the beneficial bacteria (bb) we all look for need solid surfaces to colonize. Many look for very porous surfaces which makes sense. Using that criteria and given an assumption the more dense sponge has a greater surface area then it ought to hold the greater population of bb.Does anyone know the difference in performance when it comes to dense vs. porous sponges.
I recently added a power head to a dense sponge and while the mechanical filtration has seemed to increase I noticed the sponge getting choked out with detritus and have to service it more than before.
I was wondering which has the higher capacity for bio filtration.
I would highly recommend to do you like you're asking; with a sponge filter (have 'em on just about all my tanks) -- you'll usually get less bubble action/flow compared to an airstone, but in case your canister filter ever has a problem you'll have at least some bio filtration going on. Likewise if the electricity goes out you can easily hook up a battery powered air pump to your sponge filter, it could help to save your fish.I've been thinking...
I have a 66g tank running on a canister. I was thinking about replacing the airstone in the tank with a sponge filter. It doesn''t cost much, uses the already existing air line and will still provide surface agitation to oxygenate the tank.
what do you think? makes sense to run both a canister and a foam filter? will it provide enough surface agitation?