In order too keep these Animals alive AKA CORALS AND FISH, you need the basic things, clean cycled water, good light( MH, HQI, T5,AND LAST PC'S ),good filters,(skimmers), and flow. So by having these VERY DELICATE ANIMALS, you should also know how, what, and when too feed them, Like mzbdz posted about the pars, thats the key element to tell you where your water is.your pars (parameters) is very crucial to learn it, that keeps these animals alive knowing the levels
digitydash posted the pars, Salinity - salt water level,
Ph 8.3
Nitrates - polutants
Phosphates - polutants
Nitrites - polutants
Amonia - polutants
Calcium food 420
Alkalinity food 8dkh to 10 dkh
and magnesium food this keeps your levels in food stablelized , keep it at 1300 to 1450
after you know that your water is safe to have corals,fish,etc, after a good cycle, minum 3 month to 6 month for impatient people,lol, i know i was in the beginning, that's how we learn the hard way, Once you get to wanting SPS, that's were you gotta know your pars, there super sensitive animals.Any body can do it, just have the right environment, if you want to have a awesome reef tank, small to large, you should learn how to keep them alive.
It doesn't matter what size tank you have , your going to spend some money, so why do it with out knowing how to keep them. It really sucks when things start to die, then thats when we get mad, lose interest, get discourage,
and more important animals keep dieing.
Again the basic things, clean water without any pollutants,good light,and food.
the light gives the energy for them too eat.
the food can be the most important thing, calcium,alk,mag, and floating micro food, like dt's plankton , cycloe eez , pyto feast plankton,. and with out clean water, for get about it.
softies my need direct feeding.
it looks like you got nice LR, just get your water in check, and also do weekly water changes, use only d/i r/o water.