I love the fact that it is shelves underneath.
Would two watchmen gobies and a jawfish get along or would they get territorial?
Well I did a quick 25% or so water change and put some Prime in the water. Well they got worse and worse and the more I read online I was pretty sure it was from the ammonia. I talked with the LFS who took my water sample and tested it and said that everything looks fine now, but that I should just turn the lights off and wait. Well they look like they will actually make it, not sure if the ammonia damaged their organs permanently or whether they will heal, but they are swimming around now and eating like pigs. They are still breathing heavy, but the LFS said it will take some time for their gills to heal. Needless to say I will never trust one of those alert badges again. DrsFosterandSmith refunded me my money and Seachem argued that the API test and theirs tests for different types of ammonia. They told me to put the badge over a bottle of windex to see if they worked, well of course that worked but they didn't work in the QT. The only thing that changed was the ammonia level from when they were dying to now when they are swimming around. Anyway, just a warning (sorry for being long-winded). Frustrating about your clowns. They are really pretty.
A few pointers...
Your QT also needs cycle too. An easy way to do this is to keep a sponge in your sump to build a bacteria colony. That way its ready to use in your QT filter whenever you need it. I would hold off on adding any fish. Make sure you have had your bacteria and algae blooms, given your clean up crew time to settle in, and water conditions time to stabilize. In my experience going slower is always better. I would also try to pick up a API reef master test kit and or saltwater test kit to start. They are fairly accurate and include many of common tests you will want to have when beginning. If youre not on a budget Salifert makes extremely accurate test kits that are easy to use. I have learned, investing in good test kits is always money well spent.
Good luck.