^^^^^
Just FYI....."RO" water from machines is not really ro water. It's tap water that is filtered. Big scam. Test it and you will see it has way more PPMs than RO water. At least that is the way it has tested for me whenever I have gotten it. your tap water is O.K. Tap water is actually better than RO, as it has minerals that the plants need anyway. That is, in the case where the water is not high PPMs. Yours is O.K. Tap water works great with coco. I learned not to use RO water, but to use tap water instead. With real RO water, you will most likely need cal/mag.
Just FYI....."RO" water from machines is not really ro water. It's tap water that is filtered. Big scam. Test it and you will see it has way more PPMs than RO water. At least that is the way it has tested for me whenever I have gotten it. your tap water is O.K. Tap water is actually better than RO, as it has minerals that the plants need anyway. That is, in the case where the water is not high PPMs. Yours is O.K. Tap water works great with coco. I learned not to use RO water, but to use tap water instead. With real RO water, you will most likely need cal/mag.