I was never able to use it successfully. Im a small medical personal operation at 400 watts HPS and everytime I used Ocean Forest my plants trickled out after three or four weeks of flowering and died prematurely with wispy buds at best. Admitedly I never added any additional fertilizer. I switched to Miracle Grow as a joke to myself (out of fustration) knowing that the time released was bad for me etc...etc...and have not had plants this good in years.
i just know that Ocean Forest should be the better choice for me but for some reason the Wall-Mart dirt is working better.