rcs onyx dhg zomg wtf

Wow. So ive had my RCS tank up and running for about 10 weeks now, and my shrimps have been sickly. No more "random shrimp death syndrome" but they're discolored. I haven't had any berried shrimp at all, but all my females have clearly visible saddles. Just found out that the 3" of oynx sand in...