This is only me but I won't sleep tonight if I don't say it... First of all, the simple fact that you have found this sight, logged on and are asking questions is admirable...Personally, I have had a freshwater tank for ten years and other than cycling, there are almost no similarities. W/ freshwater you can use minimal filtration, minimal water changes (not healthy, but do-able), You need not test for anything, & short of feeding them every couple of days it's virtually hands off. But a saltwater... whoa, undivided attention at times, many many water tests, and OFTEN, lots to do, lots to know, lots to LEARN, and lots & lots of $$. This is a long time commitment, if you want to try it cause the fish look cool... do freshwater, if you want to take on a very time consuming, but even more rewardable experience/hobby, push for saltwater.