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I am in the planning stages for a new tank (already on order). I'm going from a 32g biocube to a 60g lagoon'ish' custom tank. I'm planning on using CaribSea Special Grade Arag-alive sand since I need to do a same day swap (in order for new tank to be in same spot as current tank). I also have about 35 or so lbs of excellent live rock (covered in corals) in my current tank. I will probably add more live rock, but I want to wait a bit to do that. Should I use all Arag-alive sand, or could I mix it with regular aragonite? I will be transferring over my fish and not adding any new ones for a while, so should I be OK with my existing live rock and maybe half live sand, half regular sand? I don't plan on transferring over any of my existing sand (or should I opt to transfer over a cup or two?)