Hitting a brick wall!

Okay so my rez chiller is on its way but is being shipped from halfway across the country and wont be here for another week. I am on day 10 with my plants and the Ph is still at 7, the ppm at about 50, and the rez temps at about 80. I was told not to worry about any of that in the beginning of my grow because my plans wouldn't be running on my system until about day 10 anyway. I have been spraying my rockwool cubes with just water for the whole grow and just started watering with 1/4 nutes solution today because it is day 10. I am worried that my plants aren't utilizing the system (oxyponics pro 6) and on the other hand im worried that if they are trying to use the water from the system that it is too hot and will kill them. Can anybody help me out here. Im plain and simple stuck. Here are some pictures of a few of my plants from today! The first picture is one of 2 plants that is doing great, the second picture 1 of 2 plants that started good but hasn't grown in a few days im assuming his growth has been stunted, and the third picture is one of 2 plants that started off bad and has very very slowly grown. Hope someone can help me out here!!

Why is your res water so hot? Do you have a light under it?

IrishSmoke00 said:

Okay so my rez chiller is on its way but is being shipped from halfway across the country and wont be here for another week. I am on day 10 with my plants and the Ph is still at 7, the ppm at about 50, and the rez temps at about 80. ......snip......

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Don't worry you are fine. My very first grow was NFT and my reservoir hovered around 85 for quite awhile. A chiller will be nice but you are ok until it gets there. However you must make sure your nutrient solution pH is 5.8 to 6.2. Much out of that range and they don't do well. So adjust that pH! The only other thing you can do is to put some hydroton over the exposed rockwell. You want to keep algae growth to a minimum since you are running a warm reservoir.

I also put chlorine in my NFT reservoir to combat algae. It won't hurt your plants. I did it by simply using tap water (before I was gifted my RO generator, thank you CG). But you might want to add some chlorine to your reservoir to combat bacterial growth at the temps you're at. I'd add 6 drops/gallon.

There can be a few factors why the plant is not growing. There maybe a chance the rockwool for this plant has been too damp and your seeing the start of rot somewhere on the stem.

Won't know until either she recovers or dies. If she does die, pull apart the rockwool and examine the plant, a great way to learn the "whys" so it doesn't happen again.

Cheers
- SB -

My rez is in the same room as my 600watt hps but not directly under it. I don't understand fully what NFT is but I have an idea, and okay cool because once my chiller gets here I will keep rez temp at between 68 and 70. And I posted another thread early in my grow about PH because even after adding some ph down it still stay at 7 to 7.5 I was told once I get my temps down to 68 it will help with ph but other than that im not sure what to do. I also just covered the rockwool with a little bit of hydroton because im pretty sure my light is drying it out. Any special kind of chlorine that I should use? Okay silicone so everytime ive noticed my rockwool cubes dried out ive watered them with a spray bottle prolly 4 or 5 times during a day, is that sound good or maybe im watering too much, but the cubes are never moist my light dries them out so then I water them. And I totally cant just wait for them to die lol so I unburied one of my weaker plants and the root is still all white with a little yellow at the tip and is pretty long actually growing towards the bottom of my net pot towards the water!

Freeze some bottles of water and add to your res until your chiller gets here! You MUST lower your ph if you are adding nutes, if you add some down and it is still to high, add some more!!!

I swear I think if I add the entire bottle of ph down it still wouldnt change!!! Also one of my seeds died after germination he had a pretty nice white root that had a small brown tip when I planted him in the rockjwool but also the rockwool was pretty wet I didn't leave it out to dry for long enough, do you think she didn't make it because she drowned? And another plant seen in picture 2 above wasn't growing but was still healthy so I moved the hydroton aside to look at its roots and I think the 'shock' from moving the roots killed it because it is dying now!!

IrishSmoke00 said:

I swear I think if I add the entire bottle of ph down it still wouldnt change!!! Also one of my seeds died after germination he had a pretty nice white root that had a small brown tip when I planted him in the rockjwool but also the rockwool was pretty wet I didn't leave it out to dry for long enough, do you think she didn't make it because she drowned? And another plant seen in picture 2 above wasn't growing but was still healthy so I moved the hydroton aside to look at its roots and I think the 'shock' from moving the roots killed it because it is dying now!!

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In that case i would suggest getting new testers. i have my res in same tent as 600 watt doesn't get that hot is there any other variables it could be