Mixing reservoir water dirty

[jmustapha]

Ya same thing happens to me to and I've been told the same. It shouldn't be an issue for you

[Madreefer]

This is definetly poll worthy

Let me guess.....your using Instant Ocean?
It happens to me every batch too. After years of using same mixing pails they're dirty looking too. I do nothing about the stuff on top, goes right in the tank with no bad results. No worries man

[Koleswrath]

Hey thanks for bringing this up. I noticed the same thing when I started using Reef Crystals. Funny thing is that it started about 1/4 way through the bucket. You'd think they'd mention this on the packaging. I've been scrubbing my powerhead and mixing containers thinking they had bacterial buildup on them or something.
Haven't noticed any ill effects from it so far.
Greg