Help needed! 2nd grow Deep Water Culture

[shaylosi]

this is ny 2nd grow im using a 4 gallon tank 2 air pumps 4 air stone and a wather pump whit feeders.
im growing 2 clones of white widow feminaized in hydroton.

im using 2 55w 6500k cfl
2 45w 6500k cfl
1 36w 2700k cfl

gh 3 part for hydro
my ec levels are 800-900
ph at 5.8-5.9
temp at 83-92
wather temp at 80-86

the problem is that my leaves are lite green whit white dots.

can someone help me diagnose the problem
here ared the pics:

the stem is a litel red
many thanks...

 

[Thew1sest]

Take a magnifying glass or strong camera and zoom in and check your plant for spider mites. Or it could be a nute problem too and your plant reacting, try easing on the nutes if youve just started with them etc. Try process of elimination for your girls! They'll thank you in the end for a nice living environment.

 

[Racefan]

Your temps are too high. Especially the nutrient temps. You are suffocating the roots and forcing the stomatas to work to feed the plant air. The cooler the solution the more 02 in the solution. Ideal res temps are between 68 and 78. Same for room temps although they can be a little higher. A res temp over 78 is prone to algae growth as well. What color are your roots?

 

[deadnrizin]

Have been doing DWC for 3 yrs now an GH nutes since 2000.My rez temps r a steady 72*.It takes time to get ur program to work.Agree with RF about temps as have seen this B4.How do u keep ur rez temps stable.Your roots should b white r they?Your levels seem ok.But different strains need different things in veg an flower.Hope all gets better.stay safe an grow on.
Godspeed,
DnR