I have used the GH line of products, the GH grow, micro, and bloom are mixed in a 1:1:1 ratio when your plants are vegging so that ratio translates to you adding 1/4 of a teaspoon of grow, micro, and bloom to a gallon of water and you should mix the water around with a wisk between adding the nutrients so the salts do not interact with each other before being diluted. When your plants bloom the ratio on the bottle is 1:2:3. So Grow is 1/4 teaspoon a gallon, Micro is 1/2 teaspoon a gallon and Bloom is 3/4 teaspoon a gallon. Also this lineup of fertilizer is synthetic salt based, so these synthetic salts can accumulate over time in your plants soil and burn them. The frequency of use should be every other week since these synthetic salts will accumulate and burn your plants. The weeks that you are not adding fertilizer just adjust the PH of your water and add some Superthrive. The last two weeks of the two months that your plants are in bloom there should be a flush with clearex to get rid of any of the synthetic salts in your soil and then add just straight water for the rest of the two weeks so your bud dose not taste like GH nutrients.