Ok - you're doing ok so far. The first thing here is you want to keep these fish alive so lets try to do that for now. In the mean time do a lot of reading on this board and get a few books and try to learn as much as you can. After awhile you'll decide on changing your substrate maybe to sand, or get a better skimmer, and lighting and some LR (live rock). Back to the fish though. I would go and get some powerheads ($17) that hang on your tank and circulate the water. Next thing I'd do is get some LR in there, but wait a few weeks so your cycle is complete. Putting LR in there now will cause another mini cycle - an ammonia spike from the die off of the rock. Even cured LR has some die off. Try to buy a few lbs so the fish have a place to hide. But the best thing to do right now is not do too much, don't try to correct things yourself with chemicals and such (PH adjuster). Let the tank settle down and complete its cycle. Top the water off with purified water from the supermarket - <$1 per gallon. Topping off with tap water will cause high algae growth. So for now stay away from tap water. After the cycle do a water change of about 3-5 gals. Mix your salt the day before in another container that is clean - never used before would be best. Let the water settle for a day to the right temperature and measure the salinty to match your tank.
So - get at least 1 power head in there for now, top off with purified water, wait for cycle to complete in 2 weeks I would think, do a partial water change. Then add some LR.
Hope this helps. Lot of info - sorry..
