Please Help My roots are Crazy Fuzzy Moldy

I started with 6 beautiful clones off 50% Northern Lights/ 50% Afgani mother.
I am now down to 5. I had the girls for about 2.5 weeks and they were beginning to look great. Super roots and all, but then I had this battle with the heat of the closet and the reservoir. I did finally get all settings correct, but I am worried it is to late?

I am using 180watt LED and 15 watt LED
DWC (Bubbleponics)
normal office fan
and a humidifier to keep humidity up

Temp: 73-79F degrees
Humidity: 51% - 56%
Water temp varies between 69F- and 76F

I noticed

I noticed some great roots starting to touch the water, even getting those monster looking "finger roots", but in between the Hydroton and on some of the roots in the nets was this fuzzy white Mold. It even was on the rockwool.

I flushed the plants and used a 3% Hydro-peroxide to bath the roots in. I also was the reservoirs with a water/bleach solution. Throughly clean pumps air stones and everything. It seemed great at first, but two days later same issue. I again repeated this process.
PLEASE HELP MY BABYGIRLS
What can I do this is my first grow

That "fuzzy white mold" could have been trichoderma.. which is beneficial fungi. Was it on the roots or the cube?

it was on the roots, the cube, and on the actual Hydroton. It really looked like mold and it kind of had white powdery substance on the bottom of the res.
Although I am not sure JealousGreen where on the root you ment cuz it wasn't anywhere I could see it near the water, it was more in the net around where the roots grow through the hydroton

Can I please get some feed back from some of the Veteran Growers?
I am a just trying to start my quest to become a great herb-provider and I have become somewhat discouraged?

Water temp in reservoir should never exceed 70F! This is causing unwanted bacteria / microbes to grow this can lead to root rot. Read Heidenberg's thread if you have been slimmed.

https://www.rollitup.org/dwc-bubbleponics/361430-how-breed-your-own-beneficial.html

Your medium should always be covered, how far is the reservoir below your net cups? How deep is your rockwool is it covered?? I need more description on what your growing in some pictures would help a lot.

Weedler said:

Water temp in reservoir should never exceed 70F! This is causing unwanted bacteria / microbes to grow this can lead to root rot. Read Heidenberg's thread if you have been slimmed.

https://www.rollitup.org/dwc-bubbleponics/361430-how-breed-your-own-beneficial.html

Your medium should always be covered, how far is the reservoir below your net cups? How deep is your rockwool is it covered?? I need more description on what your growing in some pictures would help a lot.

Click to expand...

I am kind of getting the same advice about the under 70F, so thanks for that confirmation. I have been dropping Ice packs in for the last few days it seems to be working.

How do you cover your medium? I am not sure I understand that statement.( Don't wanna sound juvenile but I am not sure)

The nets are probably 6 inches above the reservoir water and I have the 3 inch rockwools which I have covered with Hydroton. It is a basic Bubbleponic unit from www.StealthHydroponics.com. I am sorry I don't have much for a camera right now, but hopefully this will work for now.