This frogbit doesn't have Tiger stripes,.....I would guess lack of Nitrate and Iron.
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Marekm's 200L.
- Thread starter marekm
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This frogbit doesn't have Tiger stripes,.....I would guess lack of Nitrate and Iron.
Hi all,
Lack of nitrogen (N) shows in reduced growth with leaves that are small, as well as pale. Have a look at <"The scientific background to the "Leaf Colour Chart"">.
cheers Darrel
One of the issues with nutrient deficiencies is that if you "cure" one, another is likely to appear via <"Liebig's Law of the minimum">.
Lack of nitrogen (N) shows in reduced growth with leaves that are small, as well as pale. Have a look at <"The scientific background to the "Leaf Colour Chart"">.
cheers Darrel
Rotala and Frogbit look a tad peely wally......as they say in Scotland.😁
update: co2 fluctuations
another small issue I am having lately is having trouble dialing in CO2. Previously I was using the 1 PH drop method - PH value in morning was around 7.0, so I was aiming to achieve a PH of 6.0 during photoperiod. However as I mentioned before, when I added the 2nd filter, the PH did not rise to 7.0, only to ±6.8. It is now slowly getting back to the previous value of 7.0.
But the problem is that it makes the 1ph drop method unreliable if the baseline PH value fluctuates, so I was trying to use a degassed sample, as mentioned in this article on 2hraquarist.
What I did is I placed an air stone in a cup of water and let it run for 15 minutes. To my surprise the PH of the water was pretty high - 7.8, and it was slowly falling in the period of couple of hours until it stabilized at 7.6.
So I am now confused, is it possible that the water after running airstone for 15 minutes contained even less co2 than the baseline according to henrys law (0.6 ppm)? And can I base my co2 level calculation on the stabilized value of 7.6 and assume it would contain 0.6ppm of co2?
another small issue I am having lately is having trouble dialing in CO2. Previously I was using the 1 PH drop method - PH value in morning was around 7.0, so I was aiming to achieve a PH of 6.0 during photoperiod. However as I mentioned before, when I added the 2nd filter, the PH did not rise to 7.0, only to ±6.8. It is now slowly getting back to the previous value of 7.0.
But the problem is that it makes the 1ph drop method unreliable if the baseline PH value fluctuates, so I was trying to use a degassed sample, as mentioned in this article on 2hraquarist.
What I did is I placed an air stone in a cup of water and let it run for 15 minutes. To my surprise the PH of the water was pretty high - 7.8, and it was slowly falling in the period of couple of hours until it stabilized at 7.6.
So I am now confused, is it possible that the water after running airstone for 15 minutes contained even less co2 than the baseline according to henrys law (0.6 ppm)? And can I base my co2 level calculation on the stabilized value of 7.6 and assume it would contain 0.6ppm of co2?
I have increased the co2 injection so that the PH drops to 6.0 during photoperiod as opposed to 6.3. During night/morning it raises to around 6.9/7.0.
I think the drop checker is starting to get a bit too yellow so I am thinking to back up a little bit to target ±6.1, but fish/shrimp seem to be fine.
I have noticed nice 'pearling' that was definitely not apparent before, especially on rotala and echinodorus, so seems like the plants are enjoying the change. Unfortunately the hair algae and BBA seem to be enjoying the frequent changes as well, but I am hoping that I need to dial in the CO2 just a little bit and then everything should be set, so I can finally let the tank stabilize.
I think the drop checker is starting to get a bit too yellow so I am thinking to back up a little bit to target ±6.1, but fish/shrimp seem to be fine.
I have noticed nice 'pearling' that was definitely not apparent before, especially on rotala and echinodorus, so seems like the plants are enjoying the change. Unfortunately the hair algae and BBA seem to be enjoying the frequent changes as well, but I am hoping that I need to dial in the CO2 just a little bit and then everything should be set, so I can finally let the tank stabilize.
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