okay, I would go with a BTA, all though if you are going to add some more sand wait you are going to a small spike. I know most people don't want to hear this but from everything I have read, you need your tank up 6+ months to keep a nem healthy and happy. A long tip nem need a DEEP sand bed. I would also think about getting some more live rock, BTA's love to have little caves or cracks they can put there foot deep down into. if you have t-5s then you got enough lighting but if you had bought PC lighting I would say you need to return the unit and get t-5's or MH.