SunGrow Aquarium Rocks and Powder, Enhances Shrimp's Color, Helps Shedding, Supplemental Food for Shrimps, Crayfish & Snails, Tasty Snack, 1.7 oz

Not like the picture, don’t expect your shrimp to have a Roman orgy on these things when you put them in the tank. That said, I see them sneaking over there to take a rub or lick or whatever they do with these things. They’ve been molting and frolicking. We’re all happy.

Well not sure if my shrimp care for this mineral rocks at all.

My shrimp & snails are all over these.

I'm not sure if these actually work or not but my shrimp aren't unhealthy and everything in my tank grows rapidly so 5 stars it is.

Disappointed..pic looks like nice big 3 sized rocks..got a tiny bag of crushed tiny rocks..won't buy again and won't use in tanks..put in a can for my cat to play with..she likes the rattle..

My shrimp and snails love these.