first time grower ... not sure what whats wrong

hello first time grower and my plants are in week 3 in vegging stage and the leafs and staring to change colors like the pics below

i am using a 5*5 grow tent with 3 600 watt led's

pro mix potting soil

with sensi grow part a&b nutrition's

and calmg+

not sure what i am doing wrong plz help

plants all look overwatered and possibly phosphorus deficient.Slow down your watering frequency.

Resinhound said:

plants all look overwatered and possibly phosphorus deficient.Slow down your watering frequency.

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i water them every other day or when i know they need water ... but whats the best way to go about phosphorus deficient?

Are you sure it isn't a nute burn where nuted water has splashed on the leaves? Any time you use water with nutes dissolved it is a good idea to keep a spray bottle handy so you can mist the leaves after watering. Just water in the spray bottle, eh?

I would get a fairly mild nute to mix with the water and try that for a couple of weeks. Look for a nute somewhere around 10-10-10.

Good luck, BigSteve.

Lark25 said:

i water them every other day or when i know they need water ... but whats the best way to go about phosphorus deficient?

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Stop overwatering them.

Id like to see a closer up full plant shot under normal light,that would help us.

Lark25 said:

i water them every other day or when i know they need water ... but whats the best way to go about phosphorus deficient?

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I think every other day is too much. Do the knuckle test. Poke your index finger into the soil until it touches your knuckle or the place your finger bends at. If you feel even the slightest bit of moisture do not water. Seriously, if you think you may possibly feel just a hint of humidity then don't water. When in doubt, dont water. Its unnatural to think this way. I usually water once every 3 or 4 days. And I add nutes on the 3rd watering.

On a semi related note, letting the soil dry out is good because that's when the roots get off their lazy butts and start digging deeper to find water. And a plant can only grow as big as its roots will allow. If they always have water then they will never move.

Definelty overwatered. Do NOT water every day, they don't like being watered daily unless you're using an ebb n flow system. I water every 3 days on average and my plants are doing fine.

Even the knuckle test can be misleading. Get a cheap soil moisture meter. As above said, the roots need to work. Tough love! The plant will literally tell you what it needs, when it needs it. Just do some reading on what to look for so you can understand it's language!