HI both of you.
Dont think not comming from the FW
side of things will affect you. It dosent really make a difference as there are a few simularties between FW
but there are many more differenaces.
The key is to start slow and dont try to rush things. Many newbies try to rush things and expect showcase results in a short period of time.
The book that was recommended to you IS IMO
one of the very best resources. If you dont feel like paying LFS
prices you can get it from amazon via our library link. http://www.aquariumadvice.com/saltbook.php
Depending on your ultimate goals other books might be of interest to you like Aquarium Corals or Reef Inverts
Honestly you will have better results and an easier time keeping a larger system. While you can start with a 20gal SW
and be sucesseful remember that the # of fish and the selection will be quite limited. If your budget can allow I would suggest something a little larger as this will give you some greater flexability as well as water stability when cycling and working to get your feeding amounts and habits established.
For both of you what are your ultimate goals with a SW
tank. Are you just looking to keep the colorful SW
fish or do you wish to replicate the SW
Reef? Depending on what direction you wish to go can have a big impact on the size and type of equipment recommended even at the beginning stages.
Afterall no one likes to buy stuff twice.