Hi what is the expiration date?

I have had the same gallon jugs for 7 years and still work fine they get a little cloudy but other than that dont think they expired

can you use this with aquaponics?

No. I do not think this would be usable in aquaponics because of the fish.

do u add the solution to your reservoir or do u mixed first then add it to your tank.?

I fill the reservoir about 3/4 of the way. I add the GH straight to the reservoir water. Then top off the water accordingly. I use the 8 different GH products in the reservoir at one time.

The amount is on the side of the container for the different growth stages I mix all three of them in the water together and use the amount that is on the container

ASIN	B01I4U0OGW
Best Sellers Rank	#12,511 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #6 in Hydroponic Nutrients & Additives
Brand	General Hydroponics
Global Trade Identification Number	00783942912067, 00799441256625
Is Discontinued By Manufacturer	No
Item Form	Liquid
Item Weight	31.2 pounds
Item model number	GL56718045ABC
Liquid Volume	384 Fluid Ounces
Manufacturer	General Hydroponics
Number of Items	3
Product Dimensions	17.7 x 5.9 x 11.6 inches
UPC	783942912067 799441256625
Unit Count	384.0 Fluid Ounces

General Hydroponics Flora Grow, Bloom, Micro Combo Fertilizer, 1 gallon each, Pack of 3

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