A 36g is a little small for saltwater. I started with freshwater too. You can't stock as many fish in a salt tank as you can freshwater. Saltwater fish are really easy to get stressed if they don't have enough room. The cheapest part of a saltwater tank is the tank itself. Anyway of getting anything bigger? At least 55g? I think you'll be happier in the long run
I agree that bigger is better in SW
, but 36Gal is do-able. The tank is one of the cheapest individual items but it also dictates the price of all the other items as well. Going bigger means spending more money....no way around that. Bigger skimmer, more LR
, more sand, bigger pumps, more lighting output etc. I say if you want to give it a shot, go for it. However, realize that your tank isn't overly big, so take the proper precautions and set it up wisely and understand that with a smaller tank, comes the need for a closer eye to keep water parameters in check.
Have fun with it.....read lots before jumping in so you don't buy sub-optimal equipment. Gain a solid understanding for the SW
fundementals, and ask lots of questions.