Can I use the same gallon of Grow big as last time?

[Locedd]

I Use FF nutes on soil grow. I use the 4th week of schedule and use 1 tsp per gallon of Grow big per gallon, I feed every other watering so my question is , I still have the Grow Big mixed into a gallon of water from my last feed, Can I reuse the week old mix of GB per gallon? (used conc lemon juice to lower ph)

I ask because the gallon storing the water turned into a greenish color.

[Iceberg420]

I Use FF nutes on soil grow. I use the 4th week of schedule and use 1 tsp per gallon of Grow big per gallon, I feed every other watering so my question is , I still have the Grow Big mixed into a gallon of water from my last feed, Can I reuse the week old mix of GB per gallon? (used conc lemon juice to lower ph)

I ask because the gallon storing the water turned into a greenish color.

give it to ur outdoor garden plants...