First grow, I'm noticing some yellowing leaves. I've read all the FAQ's and understand how to trace the different signs, but I still feel as if I haven't had enough experience to be certain either way. Most likely you're going to say my nutes are too high. If this is the case, what do I do? Add to my reservoir to bring the PPM's down? What's the right corrective action?

Please feel free to suggest other things based on the pictures.

Thank you

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Have you flushed lately? whats the pH??
Nute burn.

That 3rd pic is either heat or salt-build up or pH.

I flushed about 2 weeks ago.
pH has been kept at a constant 5.7. I figured it was nutrient burn. So is it best to pump out my tank and replace with fresh water with no nutrients?

thanks

I go 1/4 strength, raise pH to 6.0

Heat has been around 74 F. So do I use my clearex for the salt build up? Are you suggesting I need to go through a flushing period? For how long? Can I flush with the plants in place?

thanks

Are you using drip?

haha. that didn't make sense. I flushed and used the clearex about two weeks ago. I basically replaced the water with 5.5 pH and ran it with the clearex for about 2 hours, then replaced the water again with 5.7 and about nutes.

thanks

Ebb and flow. 25gallon tank.

Growing hydro you need to flush out the media about every two weeks, 3 times the mass or the media with clearex adjusted water. temps good I'd say it time to flush and refill with1/4 - 1/2 strength nutes, go from there.