What is wrong with these lower leaves?

if the leaves are curling down its usually overfert but since your plant looks like it needs nitrogen bad, the leaves drooping downward is overwatering...give them a full dose of ff grow big but you need to get a ph droplet kit they are very accurate. that water is ok but RO is best. just mix a full dose soultion of ff grow big, adjust ph to 6.5 to 7 and make sure you have 10 percent runoff with each watering

Thanks! But wait did you contradict yourself? You said it's over watered and also said it could be over fertilized.. but then you said to water it and to use a full dosage.

​are you growing indoor or out?

Originally Posted by Sweethunybunz

​are you growing indoor or out?

I already said that I'm using t5's in my OP so IN

Oooh k........My bad, sorry should lookd at pre mess. Dont think u needed to be rude bout it

if its a brita or a type like that then yes they add to much salts then you get lockout

It's PUR which is like the same thing as brita. How do most people water their stuff? Should I not use the filtered water and just use straight from the faucet instead?

Originally Posted by bratattack

Thanks! But wait did you contradict yourself? You said it's over watered and also said it could be over fertilized.. but then you said to water it and to use a full dosage.

My best advice to you is to lose the t5 get a 1000 watt hps, i meant to say when im diagnosing my plants and the leaves are dark green and ram horning(curling under) its usually overfert. But since your plant is yellowing from the bottom up its either a deficiency or a lockout plus overwatering... you cant overwater if you add a shitload of perlite which provides a ton of aiflow in the rootzone(like hydro). You can judge how much water your plant is using and or needs by lifting the pot to feel its weight. the lighter it is the more water it needs, let your plants air out and water every few days depending on your pot size. The t5 dosent produce as much light so its easy to overwater your plants. the more light you have,(7500 to 10000 lumens per sq foot)the more your plants will grow, in turn drinking more water. i was trying to say since you have no accurate ph reading capabilities you should just start fresh by flushing your plants with ph balanced nutrient rich solution then wait till pots air out and you should see a difference by then. hope this helps...