I cant keep Tenuis!!!

[maxwell]

I think the Main problem and this helps most people.... what is the DTS coming out of your tap? also when is the last time you changes your membrane and all the pre filters to your RODI machine?

I am looking for a nitrate suppliment can you recommend one i have a 1000L with lots sps but struggle to keep the nitrate at 10 i feed plenty and have a good fish stock , tenuis always look pale thanks