My plants stopped growing - The Planted Tank Forum
 
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post #1 of 4 (permalink) Old 11-05-2014, 08:38 PM Thread Starter
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My plants stopped growing

Hi!

In the last month my plants stopped growing.

Instead of trimming once a week I need to trim once every 3/4 weeks.

Here some details about my nano tank:
- 30 l
- ADA new Amazzonia soil
- light 26W (~1W/l)

ADA Fertilizers protocol:
- Brighty K every day
- During the first year I used Step 1 every day (now only 2 times / week)
- Last week I begun using Step 2 daily
- I also started using Special Light (twice/week)

I change 20% of water weekly (using tap water ph7/kh4/cond200).

I noticed this issue since I replaced my CO2 diffuser from a wood diffuser to the JBL Taifun, in the same period I didn't have the time to look after the tank well enough (for a month) leaving it without CO2 and without supplying the fertilizers as scheduled.

I'm using a DIY CO2 system (yeast based).

I only have sakura red shrimps that breed with no issue.

Current water parameters:
* PH: 7
* Kh: 7
* Cond: ~500 ms
* NO2: 0
* NO3: 20
* NH4: 0
* temp: 25'C

I do not have reagents to test GH or phosphates (yet).



I read that plants can stop growing if there is lack of iron or some other element.

I'm not really sure if this is the case and I need help to understand how to troubleshoot and to fix this.

I noticed that a brand new Anubias leaf grown with a small hole on it, is it an indication of iron lack?



Any help?

Thanks!

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post #2 of 4 (permalink) Old 11-05-2014, 10:23 PM
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Ahhhh holes in new anubias leave. I have a thread on this and the debate went nowhere
anubias leave born with holes.
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post #3 of 4 (permalink) Old 11-11-2014, 10:36 PM
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I personally think that your lack of growth may be due to the inability of your diy co2 system to keep up with demands. I am not a big fan of diy co2 because it is not as consistent as a regulated system. Your diy co2 system may be sufficient, but its hard to tell whats causing this.


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post #4 of 4 (permalink) Old 11-12-2014, 02:32 AM
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If the bio mass was the same before the stunting then possible your micros need to be increased. If the amount of plants you had was doubled when you were doing weekly trimmings then it meas the C02 demand increased and your DIY C02 is no longer enough. More plants = more demand for C02 and nutrients.


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