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noahlito

Water Quality for Coral

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noahlito   

I have been growing coral for the past year in my system, mostly sps. I have been using a 4 stage RODI unit and the TDS was 25. I thought that the water must be really bad here in Pace, Fl to have a TDS of 25 out of an RODI unit, so I checked the tap water with a TDS meter and regular tap water is 34!!! My RODI was not filtering well. Pace, FL has some really good water!

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drauka   

Sounds like its time for some new filters.

34 is very good.  I was happy when I saw 74 up in the boonies where I live now.  Valparaiso was in the 120-140 range, which is not bad compared to some systems up north.  

 

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noahlito   

I guess my question is, I know we want 0TDS when growing coral, but when we can't get it, what is a good number to have when growing SPS? Thanks!

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drauka   

Only answer I can give you is, as close to 0 as you can get.  

In my thought process, its not the TDS that's the issue, its WHAT the TDS is that's the issue.  Imagine 2 people with has a TDS reading of 5, in one case the 5 is 3 parts boron and 2 parts phosphates.  He has corals growing out of his ears, and perhaps a bit of algae issue.  The other fella, well his 5ppm is all 5 part copper..... he can't grow a single coral and copper sensitive fish seem to die in his system, but the ones that live never seem to get ich or other parasites. All you know is that TDS is 5ppm, it could be almost anything and could change at any time.

 

That's why we shoot for 0, then add good quality salt mixes and supplements to create a safe water for our tank inhabitants. 

 

 

 

Edited by drauka

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