That was a really good article. It implies that silica is a needed nutrient in a reef. Interesting.
I think I may go with the pool sand, the play sand will be too fine I think.
I'm also going to rinse the beejesus out of the sand too. he had some silica release when he rinsed and soaked.
The only thing that might be an issue it seems are diatoms. Silicate feeds them, another good thing I learned from the article.
Another angle, maybe mixing regular aragonite with some PFS? Get a mixture of texture maybe?
I'm really trying to get a different look on this setup as far as substrate.
180g Reef - 60g Rimless Reef -90G FOWLR- 125g Malawi Cichlids- 40b REEF- 34g Fresh Planted-working on- 20L FOWLR- working on
I have a mix of many different saltwater fish amongst my tanks, but I love my Tangs most of all.