10-23-2012, 02:13 PM
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Originally Posted by Reefing Madness
3 is acceptable for fish, not for corals. Most change DI and or the Membrane when TDS reaches 3-4.
Also, its ok to throw the sand in now, or wait til you mix the salt, doesn't matter at this point. As long as its not live sand, if it is, you'll have to mix the water first and let it come to temperature then add the sand. A 12% water change a week is perfect.
So I donno if I did not explain correctly or if you did not understand. Just want to make sure we are on the same page if you dont mind. I mean no disrespect, as the issue is probably myself.
The Water coming from straight from the RO/DI is = 0 TDS. Im bypassing the containers that caused it to be 30 now and adding water straight from the RO/DI to the tank. When testing the RO/DI in the tank its reading to be 3, Im assuming because of left over whaterver since its not a new tank. I cleaned the tank with vinegar and added the Marco Rock. I did not rinse or do anything to the rock.
In short, Im adding 0TDS water to my tank and thats what I plan on using for both top off and WC. It just so happens that my TDS in the tank has rised slightly, which I assume is because of the Rock + used tank. Is this OK as long as I continue to add 0TDS water, IE, change my media when TDS reaches 3-4 or even sooner?