I plan on placing an order with Brian soon. I need to cover my tank first, however. Just curious but how are the rhomboids doing? What are you feeding them? Also, I am going with this 1/2" mesh type material to cover my tank. Do you think 1/2" holes are small enough to prevent the rhomboids from carpet surfing? I could go with 1/4" holes, but it would cut down on a lot of the light. Thanks.