Please don't get too offended, but I just had to aggree with AAALLLLLL of the comments regarding your lionfish (what to feed it) and seahorse (it'll starve if it has to compete for food, period)...you just MUST keep in mind that your local lfs is in the business of selling fish (and unfortunately to most, if a fish lives a "few months" the lfs will tell you "that's pretty typical", which is true, BUT ONLY BECAUSE THE POOR FISH WERE NOT PROPERLY CARED FOR), most, if not all marine fish (larger ones) have a life expectancy of several years (10-20+) and it is our responsibility to read, read, read, & read some more about their husbandry needs before we purchase them...it is really commendable that you're involved in this forum, but it does seem like your trying to avoid the facts by pointing out "exceptions to the rule" examples you have heard of (many of these "exceptions" do not "pan out" if really checked into...what I mean is, in reallity, many times these fish that are doing "just fine" are slowly starving to death, scared stiff {i.e. hiding all the time, living in a "corner" of the tank, etc.}, slowly dieing of mallnutrition, way to fat or skinny, etc.)....PLEASE strive to learn what the NATURAL behavior/body shape of a fish is and use that as a guide as to how well a fish is "doing"...