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Nope, lack of N also make leaf yellow, lack of K will also make leaf yellow patch. Best if you post your setup, substrate, fert dosing, CO2, rather than temp and pH
Leaves turning yellow
If temperature is around 28 degree, ph around 7.5, daily dosing of trace chemicals and strong light. The only thing that will likely contribute to yellowing leaves is iron deficiency?
Nope, lack of N also make leaf yellow, lack of K will also make leaf yellow patch. Best if you post your setup, substrate, fert dosing, CO2, rather than temp and pH
Sure:
45cm plant tank 2nd month
Co2:2 bps
Light: aquasky 45cm
Substrate: gex dark green and green package
Fert: ada brighy k (daily),ada step 1 and ada bright light(each on alternate days) ada eca(6+ drop per week), ada green growth (after trimming)
dunno with these still will see yellow
What plant is this that turning yellow? is it new leaf or old leaf that turning yellow? do you see any pin hole on the leaf?
You might want to start dosing N and P, Gex soil does not contain much nutrient. Odd to see that you are using Gex soil and yet using ADA fertilizer. K and step 1 does not contain nitrate. Brighty light on the other hand does contain N and P. ADA fertilizer is based on the fact that ADA soil contain lots of nutrient, which unfortunately you take that out. You need to re-adjust your dosing to compensate.
If you have no issue with Weekly 50%.wc, i would rather you fert with tom barr EI method. Dosage 75% from the recommended ingredients as a initial start. And monitor if you see any develop. With EI, you don't have to worry to any nutrients deficiency.
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Yes i also find strange why I use GEX maybe was not thinking that time.... nw regretting. So I am try to re-adjust using measuring solution to roughly know what I am lacking. So far only seem to lack Iron test so I am not too sure if it was iron that causing the trouble.
Plant having trouble is Rotala sp. 'Green' it was green for a while then turn yellow. While my red plants are still red which i find funny if it was iron causing the problem. No pin hole spotted just yellowing.
For 50% water I think I will pass too risky for fishes inside.
Then I would guess it is due to low nitrate not iron. Low iron will cause your red plant to turn green. On the other hand low nitrate will cause your red plant to turn redder.
Nitrogen thats a bit strange as i have been dosing bright lights. I will try daily dosing instead of alternate days. Thanks.
there is this plant deficiency graph for your reference, not by me, just search from the net
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