I think it's that the chalk collects organics around it. The supplements may do that already but in my tank, I have very high organics already (no skimmer), so I am converting the organics into more usable food bites.
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Failure isn't an option It's a requirement. 660g 380inwall+280smp/surge S/L/Soft/Maxima/RBTA/Clown/Chromis/Anthias/Tang/Mandarin/Jawfish/Goby/Wrasse/D'back. DIY 12' Skimmer ActuatedSurge ConcreteScape
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