Quote: Monoxide wrote in post #52
i thought that using GH means that I should follow hydro ph. On the soil I am a complete dits. I honestly went with what I thought was the easiest for me to go with and went with it.
So, I should not use lime in the mix? Just promix bx and perlite? stick with the gh nutes and ph my water to 5.5-5.7 without drifting? Buy some cal - mag and add 2ml per gallon. I am at 700-800 ppm, so I should be good there. My ph i was at about 6
re-read what hush wrote. when doing a standard hydro grow. the nute solution in your reservoir will drift more then the soiless mix that you are using. since your soiless mix will drift less, what you want to do is make your ph range tighter.
so instead of phing to 5.3-5.5 and letting it drift to 6.1-6.3. you should ph to 5.5-5.7, and since your soiless mix will drift less, you should end up around a ph of 6 - 6.1 before you end up feeding again.
your feeding schedule:
monday - feed nute solution ph'd to 5.5
wednesday - feed water ph'd to 5.9
friday - feed nute solution ph'd 5.5
sunday - feed water ph'd to 5.9
remember the info we give you is not set in stone. you have to modify everything to fit YOU and YOUR grow. for instance, yes the schedule above will work well, BUT not if you have small plants in very large pots. the plants will not have enough time to soak up all the water within the soilless mix every 2 days. so you have to change the schedule until the plants fill the larger pots with roots.
...all this time talking about ph and ppm's just makes my love for organics even stronger.
i remember mentioning the lime briefly in a pm to you. the lime is essentially worthless in your setup. lime is a raw organic soil amendment, it must be broken down by the microbial life that lives in soil(ex. bacteria, fungi, protozoa, nematodes). until it's broken down(chelation), it is of no use to the plants. you do not grow in soil. your soiless mix is inert and therefore does not have any microbes. the nutrients(GH3) you are feeding your plants have synthetic chelates in it to allow your plants to absorb the nutes.