Kristy....you rock!!! I have not seen those spikes yet so I will keep them monitored closely. I have a place to resale my damsels when I get the tank properly set. Thank you for all your help and assistance, I have been looking online for an inexpensive skimmer and a power head. I wanted to start small so I can actually see just how extensive the process of operating a marine environment can be. My desire is to operate a 55 gal Hawaiian reef with only fish, coral and invertebrates indigenous to that area as I lived there for 6yrs.