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Cap for dirted shrimp tank
I decided to try a 10g shrimp tank. I intend on using organic miracle grow and a cap. The petsmart that is only one block from me has CaribSea FloraMax I was considering for the cap. I am concerned it may release too much Ca and raise the GH too much. I initially looked at pool sand at lowes but it had a warning about silica so either it doesn't matter or was the wrong type.
I was only concerned about the calcium and magnesium in the substrate. It was my understanding shrimp like softer water. Not sure how much the substarte will raise the GH.
Last edited by Zorfox; 02-23-2013 at 09:44 PM. Reason: spelling
If you're already spending $10-$20 for substrate, why not buy something that's nutrient-rich or that has the ability to absorb and release nutrients slowly over time? For a 10gal, that's relatively cheap to do. You could even get Aquasoil Amazonia for about $30, depending upon the shrimp you hope to keep.
I just bought a huge bag of "play sand" at Home Depot for less than $5 as I recall. It is incredibly fine. I can't attest to it being inert since I have yet to add water to the tank. I used the sand as a cap and as part of the substrate.