are you looking for sites with info, or sales?
sales, i would have to say
<a href="https://www.saltwaterfish.com/index.html" target="_blank">swf.com</a>
and info, look at mr 4000
or <a href="http://www.nano-reef.com" target="_blank">nano reefs</a>
and this bb
and <a href="http://home.gardenet.co.za/landman/Starting%20with%20Marines.htm" target="_blank"> must read this</a>
and <a href="http://www.harboraquatics.com/reef_aquarium/reef_aquarium_starting02.html" target="_blank">reef basics</a>
and <a href="http://home.gardenet.co.za/landman/page13.html" target="_blank">reefing faqs</a>
and get a good book
welcome aboard