Why the hell do my sps keep dying

[dabandit]

Ok but im sure you allready know what good parameters are but here we go...
75gal single overflow,35gal sump inlet baffle and outlet baffle stuffed with lr pieces,euroreef 120,phosban,phosban with carbon,2x250mh with 2 96wpc,2 koralia 1's,nano koralia,115lbs lr,deep sand bed....thats my equip

Livestock is naso,ocelaris,green spot dragonet +cuc

Parameters are phos.0,nitrate0,nitrite0,ammonia0,cal450,ph8?it was right,temp82,sal1.022,alk10dkh and I've never tested for mag.

[dabandit]

I dose trace elements,cal,phyto and zeo

[dabandit]

test kit is professional grade test tube style

[dabandit]

I've never had to dose for ka my water changes keep that in check 10% every3 weeks with instant ocean

[dabandit]

and no softies anymore

[dabandit]

all sps were given 12'' away from any other coral

[dabandit]

Im stumped I've tried on and off to keep sps for about 2 years allways the same result but only in this system,could it be parasite or bacteria? and what can I do?
P.s no cyano i system but some hair algae on back wall for tang

[o.c.d.]

when you are adding the corals are you starting low in the tank? how about the age of the bulbs?

[mark]

With a Ca of 450, chances Mg is okay (from a observation with low Mg, I'm unable to get my Ca up).

Source water?

[Skimmerking]

Originally Posted by dabandit

Ok but im sure you allready know what good parameters are but here we go...
75gal single overflow,35gal sump inlet baffle and outlet baffle stuffed with lr pieces,euroreef 120,phosban,phosban with carbon,2x250mh with 2 96wpc,2 koralia 1's,nano koralia,115lbs lr,deep sand bed....thats my equip

Livestock is naso,ocelaris,green spot dragonet +cuc

Parameters are phos.0,nitrate0,nitrite0,ammonia0,cal450,ph8?it was right,temp82,sal1.022,alk10dkh and I've never tested for mag.

I can't seeing the Low ORP if he has a over flow and the water is travelling down any huge water movement the orp is going to be up some what. I can't see that the
alk is that bad lots of Reactors are pumping out 10-11 DKH out for reactors. HOw are the SPS dying in the tank are they dying from the top down or the bottom up.... so you have any nudibranches in your tank that you dont know about that are eating the SPS