Hi everyone! I just got a 55gal tank and thinking about starting a saltwater tank. I've kept freshwater fishes for about 5 years and left the hobby for 2 yrs. Now that I want to get back into fish keeping I want to try S/W. Anyway, can someone recommend a good & inexpensive protein skimmer? I'm looking to spend under $100 for one. Also, I really like lion fishes, puffers, triggers, clown fishes, blue tangs and blennies. Which ones can be kept together? Sorry, I'm new to saltwater fishes and don't know which ones are compatible. Lastly, what is the best type of live rock to get on a budget? I've seen ones from Fiji, etc..