rusty spots... please help.

[mortimerthe3rd]

got 3 blue mystics, now on 1, which is biggest 1, the leaves near top have aquirred tiny little rust spots. picture tells it all.



and the bud on the same plant is forming a little weird,




also on the plant next door at the same height a bud is going like this too.



could someone please take a wee look and give me there opinion.

 

[Guest]

I would say a calcium def. maybe mag issue. Pic#1 looks like the start of a calcium def. What are you feeding them? Are they soil grown or hydro?

 

[mortimerthe3rd]

feeding canna aqua at 1.9 - 2.0 ec. starting ec is .5. also from start off week 3 been using canna boost along with a very very very light dose of pk as canna have started to recomend this along with using there boost,. also use b1+ and hygrozyme, and have used halo 2 times so far, ph is set at 5.8 and allowed to raise up over the week to 6.2. change the system 1 a week, its a 45 ltr system, temps are about 82f during lights on and about 30% hum, and temps light of is about 68 - 70 and 55% hum. air is changed evry 15 mins lights off and on during light on. covered every thing i think, light is a 600 wt digtal hps a-d-wing and spreadr. hung about 12 16 inces of the canopy.

this is 1 of the good 1s.

 

[Guest]

I have not used canna aqua nutes before but I would say get some cal-mag plus. Any time I have had calcium problems it clears it right up. Im thinking start it at 10ML per gallon should add about 150-200ppm and watch for any new spots. The leaves with spots should not get any worse.

 

[Guest]

I also would say to check PH but you said its between 5.8 and 6.2 so thats a good range. Im gonna stick with a calcium issue.