My seedlinds are about 3 weeks old with 3 set of leaves. Every morning I check the ppm and it raises a little bit. I know this mean tgier drinking more water but when do you think they will start drinking more nutes? Sent from my SCH-I535 using Grasscity Forum mobile app
their need for more nutes will increase as they grow, but for now it's important to give them what they prefer so it's worth lowering your strength until it stops rising. when a plant is growing well and if you change your solution every week you will likely bump up the strength by a 0.1 or 0.2 EC every time
At 3 weeks they need only very light feeding...I wouldn't go any more than 200 ppm at their age...less is way better than more at this stage of growth
I would just give them the same strength that they require. there really is no need to limit yourself to figures. test what they require and just give them that