What To Fill My Refugium With/Refugiums 11/24/10 Hi I’m sure you guys are busy answering emails so I’ll get right to the point. I have a 90 gallon tank which is 36″ x 24′ x24″. So basically, I’m trying to figure out what to do with my refugium section in my sump. This section is 10″ long by 16″ deep by 12″ high. I want to fill it with 6″ of live sand and algae or 1″ of Miracle Mud and algae. I’m leaning toward using 6″ of oolitic aragonite because of nitrate reduction and dissolution of aragonite for minerals. I just don’t know if this small area is enough to do that. In my experience, the dissolution of aragonite is great for corals. Since I don’t have a sand bed in my Display, I was wondering if this 10 x 16 area of my sump would be enough.
