Hi everyone! I'm running a RQS Fat Banana plant (see journal here: https://www.autoflower.org/threads/rqs-fat-banana-auto-by-myskellos.82387 )
-Problem: mainly two: top leaves seems to have a little of intervenial chlorosis (yellowing) and dark spots that look like Ca def are spreading on middle leaves
-Medium/grow method: 80% BioBizz light mix, 20% extra perlite
-Feed and supplements used: BioBizz nute line, I gave the plant only two fertigation (
Day 37: This was the first veg fertilization, with only Biobizz BioGrow. I used 2 lt of tap water at 100 ppm, added BG 1 ml/l -> 2 ml. The nute solution had 436 ppm; pH 6.3.
Day 41: Final solution: 390 ppm; 6.4 pH, made up by:
3 lt distilled water
CalMag 0.3 ml/l -> 1 ml (Water + Calmag = 31 ppm)
BG 1 ml/l -> 3 ml
BB 0.5 ml/l -> 1.5 ml
TopMax 1 ml/l -> 3 ml
-Water source: Tap water have an EC of 350 ppm; so I usually bring it down to 100 ppm; sometimes I just use the distilled water without tap water
-Strain and age: Royal Queen Seeds, Fat Banana Auto (day 46)
-Climate: Between 25 and 18°C, RH pretty low (from 25 to 40 RH%)
- Light used: MarsHydro TS1000, at 50 cm from canopy (something more probably)
-Additional info: I first noticed the red in the petioles/stems, but I didn't see any associated def such as Phosporus or Magnesium. Then, after the first fertigation on day 37, a few days later I started noticing the dark spots. I don't know if they're related. Up to now however, the plant doesn't seems to be stunted. Also, I noticed some very little 'clawing' of the top leaves around the flowering.
To help to debug the dark dots problem I did a runoff test this morning, which gave me a pH of 6.8 and a TDS of 350-400 ppm.
I also did a slurry test (1:1 soil and distilled water, stirred up and let sit for a few hours, then sifted and measured): 130 ppm and 7.15 pH.
--Pictures: please see https://www.autoflower.org/threads/rqs-fat-banana-auto-by-myskellos.82387 and the attached ones (those have been taken today).
-Problem: mainly two: top leaves seems to have a little of intervenial chlorosis (yellowing) and dark spots that look like Ca def are spreading on middle leaves
-Medium/grow method: 80% BioBizz light mix, 20% extra perlite
-Feed and supplements used: BioBizz nute line, I gave the plant only two fertigation (
Day 37: This was the first veg fertilization, with only Biobizz BioGrow. I used 2 lt of tap water at 100 ppm, added BG 1 ml/l -> 2 ml. The nute solution had 436 ppm; pH 6.3.
Day 41: Final solution: 390 ppm; 6.4 pH, made up by:
3 lt distilled water
CalMag 0.3 ml/l -> 1 ml (Water + Calmag = 31 ppm)
BG 1 ml/l -> 3 ml
BB 0.5 ml/l -> 1.5 ml
TopMax 1 ml/l -> 3 ml
-Water source: Tap water have an EC of 350 ppm; so I usually bring it down to 100 ppm; sometimes I just use the distilled water without tap water
-Strain and age: Royal Queen Seeds, Fat Banana Auto (day 46)
-Climate: Between 25 and 18°C, RH pretty low (from 25 to 40 RH%)
- Light used: MarsHydro TS1000, at 50 cm from canopy (something more probably)
-Additional info: I first noticed the red in the petioles/stems, but I didn't see any associated def such as Phosporus or Magnesium. Then, after the first fertigation on day 37, a few days later I started noticing the dark spots. I don't know if they're related. Up to now however, the plant doesn't seems to be stunted. Also, I noticed some very little 'clawing' of the top leaves around the flowering.
To help to debug the dark dots problem I did a runoff test this morning, which gave me a pH of 6.8 and a TDS of 350-400 ppm.
I also did a slurry test (1:1 soil and distilled water, stirred up and let sit for a few hours, then sifted and measured): 130 ppm and 7.15 pH.
--Pictures: please see https://www.autoflower.org/threads/rqs-fat-banana-auto-by-myskellos.82387 and the attached ones (those have been taken today).
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