good, watching the new growth is the key here....the older stuff won't get any better at all so don't go by that. Keep an eye on your ppms and see if they rise, go down, or stay the same.

You can flush out your system between res changes. It's always a good idea (although I don't do it.....shhhh) but make sure your water if ph'd to the correct level before putting it in your rez. Anything that goes into your rez should be at the proper ph, no matter what.

How are they growing in general? Fast? Slow? Sideways?
Weedhound Reviewed by Weedhound on . Need help... leaves not looking so hot This is my first time trying to grow hydroponically and everything looks ok except about half of the plants have brown dead spots on the fan leaves and some are curling down and turning yellow:( I'm not sure what the problem is... I guessed it was an mg deficiency so I just bought some calmag plus. I then flushed each plant with a lot of pH 5.5 R/O water and made a new batch of nutrients and I'm hoping it will cure the problem... but I'm still not sure what the matter is? I was also wondering Rating: 5