I am new to salt water. I have just started and have an Aqueon 36 gallon bow front with hang on Aqueon 30 filter. I have 50 lbs of live sand and some cured coral and decorative piece from Petsmart. I have just added my first fish. I added 2 juvenile clownfish. It will be fish only and I would like to add the following in a few weeks: flame angel, yellow tang, blue tang, and a blue-dotted goby. I would also like to add a few cleaner shrimp, hermit crabs, and turbo snails. I also need to add a circulation pumps and can't decide between the Aqueon 500 and 700. Any suggestions and/or advice would be great. Thanks