Yes sir, sump with a skimmer.
And like i said, i took my reactor out and will be putting pellets in this week, i mean my phosphates are zero, but i had to change the media anyways so i thought i would give it a shot.
Carbon was just changed last week as well....

Yup, water change this week too.

Other than that, im running out of idears.

sometimes these things happen and an answer isnt to be found i mean you can probe all day but the best thing to do is do your best to stabilize things like youve done and keep an eye on things, when a tank sees too many changes it sometimes causes a hiccup and just needs to even its self out again, why your corals died could be something that happened and was back to normal when you tested ....who knows , good luck with it though and just keep on it:):)

Calcium is on the low side.

Are you using a grounding probe that's in good condition?

I wouldn't start the biopellets until you get this figured out.

Mitch

What do you use to measure SG and have you verified it? My refractometer was out of whack once and the SG was way off.

i have 2 refractometers. both reading 1.025

came home to my black leopard wrasse dried up behind the tank....
=(
my favorite fish and has been in there since day 1 (well after the cycle)

Long shot... Stray Voltage?

sorry bout you fish . my favorite hawk fish died today for no reason so i know how you feel. Lossing fish always sucks .

might not be that long of a shot def worth checking out :)