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**KathyC** · 01-08-2007, 11:48 PM

Your question made me curious and since I also have planted FW tanks, I decided to check a few of mine.
First I tested my tap water - it's 44
Then I tested 2 FW planted tanks they came in at 97 and 102..which in my opinion is just fine. They both had water changes done over the weekend and I am definitely NOT aiming for perfectly clean water as that is not necessry nor positive for those planted tanks.
Rodi water is not desireable for FW tanks. Tap water treated with a properly dosed chloramine/chlorine neutralizer is fine for FW planted or unplanted FW tanks. Obviously other parameters should be adjusted to the requirement of the breed/s of fish you own.
One other thing to keep in mind, the addition of Stress Coat dramatically changes the TDS readings. When I added 2 drops of SC to a 7 oz cup of tap water the TDS reading shot up to 121.

When dealing with a SW tank, ideally you want your Rodi water to at 0 as it comes out of the Rodi unit.

01-08-2007, 11:48 PM	#3
KathyC Rafflemeister Join Date: Jul 2006 Location: Barnum Island Posts: 4,961 Reefer Ratings: (83) Friends: (57)	Your question made me curious and since I also have planted FW tanks, I decided to check a few of mine. First I tested my tap water - it's 44 Then I tested 2 FW planted tanks they came in at 97 and 102..which in my opinion is just fine. They both had water changes done over the weekend and I am definitely NOT aiming for perfectly clean water as that is not necessry nor positive for those planted tanks. Rodi water is not desireable for FW tanks. Tap water treated with a properly dosed chloramine/chlorine neutralizer is fine for FW planted or unplanted FW tanks. Obviously other parameters should be adjusted to the requirement of the breed/s of fish you own. One other thing to keep in mind, the addition of Stress Coat dramatically changes the TDS readings. When I added 2 drops of SC to a 7 oz cup of tap water the TDS reading shot up to 121. When dealing with a SW tank, ideally you want your Rodi water to at 0 as it comes out of the Rodi unit. __________________ Don't just treat the symptom, remedy the cause!