I never knew how much builds up and inside powerheads until today. I decided to pick the macro algae out of one of my koralia's and I noticed some bubble algae inside it so; I took the whole thing apart and noticed it was FULL of bubble algae. It would come off easily so I dipped the entire powerhead in vinegar for 30min and the stuff came off very easily. Pretty much melted. Now im doing the other powerhead. The flow increased tremendously. My macros will love it.
Note to self: clean powerheads yearly at least.
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