Just ordered a Hydor 450 for my 55 gallon cichlid tank to upgrade the AC110 h.o.b filter. I also ordered new sponges for the Aqua Clear. 10 small cichlids recently added to a tank that has been running about a month. My question is how should I handle the upgrade? Do I just put new sponge in Ac filter and dump the old or put old sponge in hydro or just use Hydor etc... It's my first canister. I ordered the recommended media refills on Amazon but any additional media recommendations for my cichlid tank appreciated.
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