Why the hell do my sps keep dying

[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

[fencer]

Check your REDOX potential

[martym]

Alk at 10 is way to high with the zeo system. 8 is the highest it should be.

[justinl]

how old is the system? I admit I am not familiar with zeo, so here's me dropping out of the conversation

[michika]

SG of 1.022? How was it measured?

[Red Coral Aquariums]

The only things that jump out at me on your parameters is the low salinity (I would recommend 1.025 or 26 and due to the fact you have not tested for Mag. Here is an article that might help.
http://reefkeeping.com/issues/2006-07/rhf/index.php
Kevin

[Skimmerking]

Originally Posted by Red Coral Aquariums

The only things that jump out at me on your parameters is the low salinity (I would recommend 1.025 or 26 and due to the fact you have not tested for Mag. Here is an article that might help.
http://reefkeeping.com/issues/2006-07/rhf/index.php
Kevin

Kevin I disagree with the low salt in the water, I know of some
pepole that have a 1.22 tank and their SPS is awesome, I keep mine at 1.023 and i have no problems keeping SPS. if your MAg is really low then that could be the problem , but if you are doing water changes every 3 weeks then you are probably getting enough Magnesium. unless you are dosing KALK at a high rate which would cause the Magnesuim to drop