I'd rinse your chaeto in a bucket of saltwater. In fact I do it regularly with mine.
I do the same thing. When I do water changes I rinse my chaeto in 5 gallons of saltwater. Even doing it every week the water is a dark brown (Almost Black)
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I'd rinse your chaeto in a bucket of saltwater. In fact I do it regularly with mine.
So after the last rinsing of my cheto ball it was filled with nuisance algae and detritus I decided to toss It so now gonna use it to do wc and as a detritus settling tank keeping it bb so I can siphon out the bottom every few days into a sock !
Might add Lr or considering a natrureef chamber