I think a sand sifter or a gobie would stave to death I added my sand sifter and it is doing very well it is active. It just does not like the corse sand I have lots of worms and co pods some of te co pods are huge I thought one was a medium size crab but when I finaly located it again it was just a co pod. My skooter blemie would have staved long before it jumped into the carpet anemone to get eaten. I did do things a bit differentthan most just from experience though. my tank is a bit over 4 months and doing great. I only add one thing at a time QT everything some times I will transfer a fish a bit early depending on how it is doing in the QT. If no sign of any thing I will cut QT down to 2 weeks if I used meds if not 3 weeks. I add no more than 2 coral frags at any time if I get more they go into the QT tank if vacant or into my Kids tank for a week or more depending. Coriline algea is growing like crazy some times and slower other times. I had 1 incident because the flme angle was getting stressed out in the little QT and was not showing any signs of problems so I use a general aid then introduced him into the DT bad me. I wound up lossing him in the end it just took to long to catch him inthe DT. everyones tank is different and I would not have a sand sifting starshish ans a sand sifting gobie in a young tank then they would starve.

Bill