Depending on the age of the plants will dictate the strength of the nutes that you will give them, along with where in the nute cycle or feeding cycle you are in. By the looks of them you can start giving them a diluted nute solution. You can start out at 25% strength and then work your way up. Your plants will react to the nutes so you will want to keep an eye on them. They will tell you when its too much or not enough. I personally use the Biotonicare nutes but each person has thier preferences to the which to use. The other thing that i do is as those bottom leaf tips die i cut the brown material off so the plant doesnt put any energy into them. There are people who will just pull it off so they know that it is dead and not taking any living material. I prefer the cutting of the tips with scissors so that its an even and sterile cut. This is more of a personal choice than a necessity, imo.

Glad to see things turning around for ya and always happy to help...
whatsthatsmell Reviewed by whatsthatsmell on . why is this soil plant droopy using a soil mix organic blend with peat(1cu), and perlite(small bag) all plants are fed the same with a GH3 @ 1/4 stregnth everyother feed after leaves started to yellow(water, feed, water, feed)every 3rd day the sl has always been droopy and the 2 sk have not a week just got a cheap soil ph meter and ph was about 7.5 3 days ago i bought a iron + soil acidifier(directions say use 2/3 cup to large bush to correct from a ph of 8 to 6.5) Rating: 5