I have a 35 gallon tank that is over a year old. It has live rock, live sand, a Penguin biowheel filter, heater and light. I have had a flame hawk and clown fish for a year and recently (last week) added a porcupine puffer and two turbo snails. I do small weekly water changes (~5 gallons). After doing a little research I'm considering adding a protein skimmer and a UV sterilizer to make my tank even cleaner and healthier. Can they come as a combination to save on space and power cords? Does anyone have any recommendations for a skimmer and UV for a small tank? I looked online but the options are overwhelming....