I tend to agree.
SW and
FW have many similarities (nitrogen cycle) and vast differences (compatibility is very difficult, stocking is greatly reduced, lots more equipment, more parameters to test for).
The Fenner book is ideal, pick it up and read it through. I think you'll then realize that you need to care for your own, from start through maturity, to really understand the ecosystem you are maintaining.
I'm one of those people that feels VERY confident about my
FW skills. I may only know about fish and plants I've kept, but I'm always learning from others.
With
SW, I have a 40g that'll be running for a year this July. I still cannot get my calcium and alkalinity where I want them. I won't allow myself to buy an anemone until I get these parameters in order, because I know I'm doing something wrong, however minor it may be.
SW tanks, reefs especially, are quite expensive...a 'luxury item' really. The last thing you want to do is crash a 200 gallon reef tank in some hospital's reception area, and have to explain how it's going to cost $3,000 to restock it.
Wow, I didn't mean for that to be a lecture. Just wanted to get the point across that it's not a simple conversion from
FW to reef tanks. I think you'd do a fine job with the skills and some experience.