Chloramine in water and SPS

[Bolo Tran]

My sps have been going on a steady decline and I have racked my brain as to what is causing it but the only thing I've found is that my water treatment facility uses chloramine to treat the water. I am using a 4 stage rodi but it is not a chloramine specific system therefor I think that chloramine has been entering into my tank.

What does chloramine do to sps? This is the only conclusion I am able to draw as to why my sps are dying off slowly so please give some feedback as to whether I should look elsewhere for the problem. I've already ordered the 5 stage chloramine system from BRS. Thanks and look forward to your advices

 

[NeilFox]

Get a chloramine test kit. If your RO DI has a carbon filter (and it is adequetly sized)it will remove chloramine. If not and chloramine enters the membranes it can destroy them. Here is a really good link by Randy Holmes-Farley http://www.reefkeeping.com/issues/2003-11/rhf/feature/ . Good stuff in there including how to test for and if need be remove chloromine. Also info on whether your DI RO unit is up to the task.

 

[Reef Bass]

The link NeilFox provided is a good one.

Chloramines are broken down by carbon in our water filters. However, ammonia is a product of the breakdown and is then removed by the DI resin. My city water contains chloramines and I use 2 carbon canisters and 2 DI resin canisters in my water filter.

 

[Buckeye Hydro]

Membranes are fairly resistant to damage from exposure to chloramine.

Russ