This is gonna be awesome. I was just admiring the custom tank in the shrimp forum.
Oh my reason for suggesting florabase was that it has very similar qualities as aquasoil. It lowers the pH and softens the water a bit! I'm guessing that's why you want aquasoil for your CRS?
I think it has a peat component. The natural organics are yummy. I use pelletized peat in some shrimp tanks and they munch away.Yup. But from every experience I have had with AS, the CRS like munching on it. I am not sure why.