I see no mention of testing kits other than "free vial for water testing at Petsmart". Not knowing water chemistry during the early run-in of a tank is a pretty sure way to kill whatever you add to the tank. Since you already have a damsel, which is very hardy and will probably survive the changes in water chemistry that are occurring, the only thing you will kill is the coral you have bought. This actually will save you money, since you won't have to spend money on the proper lighting to keep the coral alive [/end sarcasm]. Seriously, a 5.5 gallon tank is suitable only for an expert, which you are clearly not. I have been keeping saltwater fish for over 40 years and don't consider myself ready for a 5 gallon tank. I did try a 13 gallon system once, and managed to keep it going for a year, but decided the effort wasn't worth the result, and moved the few organisms in that tank into my 110 gallon system. And I have all of the back-up equipment you would possibly need to maintain saltwater fish (RODI, test kits, algae scrubbers, LED lights, mixing station, etc) and still found the small tank to be too difficult and time consuming.
