It is NOT an expiration date. The product is good for 2 years AFTER the date on the bottle. Use within 6 months of opening.

How often should I use Hydroguard?

Use 2ml per gallon with every watering during the plant’s entire growth cycle. Shake well before each use and never mix concentrates.

Does hydroponics cause root rot?

In hydroponic systems, root rot is caused by over-watering the roots. … Either the water isn’t aerated enough, there’s no direct exposure of the roots to the air or a combination of the two. Once root rot takes hold, the slime creates an impenetrable barrier and oxygen cannot reach the plant.