High Tide Aquatics

What’s an acceptable TDS measurement for aquarium water?

When I started my first tank, my house already had RO water for drinking but no DI so that’s what I used for about a year before upgrading. My tds was in the 20’s that whole time. Is it possible your tds meter could be malfunctioning?

I just got the tds meter, but I guess it’s possible it’s malfunctioning. Should I test it on purified bottled water? Will that give me 0 tds?


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I just got the tds meter, but I guess it’s possible it’s malfunctioning. Should I test it on purified bottled water? Will that give me 0 tds?


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No. The moment tds 0 rodi water comes out of the di canister it can rise. Doesn’t necessarily stay at 0.


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