Alg-a-mic is cold pressed seaweed concentrate; a vitality booster and, effectively, an organic version of "Green-up". If your organic grows suffer with yellowing then this is the remedy. Used at 1 ml per ltr through growth and then 2 ml per ltr throughout flowering we find even the hungriest plants will stay a deep dark green.

If you've been underwhelmed with your soil plants' performance this may be your missing link. Unquestionably our best selling soil additive, vital even when using Allmix.