The tips can yellow from lack of nutrition so give them the full strength.They need it now more than ever. I see the massive variation of the dilution rates 1-4ml.Give it 4ml.Its much harder to over do it with organics. Its completely different to synthetic. The microbes feed the plant the organics but the synthetic goes in directly which is why its much easier to burn. If the plants getting too much N then the plant will repel the Nitrogen fixing bacteria.The microbes feed on each other,there's 1000s of different types as well as the plant feeding them.BioBizz Top Max is what you need. Or better still General Hydroponics Humic which is better value. The nutrients will become much more available,I think its charges them. Its probably the No1 recommended adative for organics.
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