If water temps are above 70F, you might regret this. Bacteria that causes root rot lives at water temps above 70F and without hydroguard…It’s a pretty good chance it’ll kill your plant.
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For me it’s a no brainer. It’s a simple added measure that lets me not hyper focus on the temp of my water cause chances are it’s gonna creep above 70F.
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What do we put in then? 
I have it just not sure the amount? The Grobo is 3 gallons I think.
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Depends on the temps IMO. If it’s summer here in AZ i do 15ml. When the water temps are just above 70F, 5-7.5ml.
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