Help me with dosing - The Planted Tank Forum
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post #1 of 5 (permalink) Old 06-15-2016, 04:54 PM Thread Starter
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Help me with dosing

Hi all, sorry for this topic as I'm sure this has been discussed over and over again but I couldn't find a consolidated place with all the info. I'm kinda new to plants and while my plants are growing, I'm seeing browning of the leaves and holes in others. What am I doing or not doing that's causing this? I have high light with CO2 injection using a 20lb tank into a 125G aquarium. Light is on for about 9-10hrs a day. I have only put in liquid fertilizer for any dosing. I do water changes probably every 3 weeks of about 25%.

What dosing do I need or what else do I need to do?
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post #2 of 5 (permalink) Old 06-15-2016, 05:06 PM
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I'm no pro at all but I suspect its because your lights are on for too long IF you do in fact have high lighting.

I have a much smaller tank with a Finnex Ray 2 on it. Originally it was way too close to the substrate - after I raised it up a bit the plants started doing better. I was also leaving it on for 9 hours and though this forum learned that I should only have it on for 6 hours.

I would wait for a more experienced member to provide an answer but in the mean time maybe you could let everyone know what type of light and how high above the plants. Also how often do you dose? Water changes need to be more frequent depending on how often your dosing.
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post #3 of 5 (permalink) Old 06-15-2016, 05:13 PM
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A picture of this tank would go a long way towards helping assess plant mass
and type. Your lights being on that long may be out of balance/w the other two
ingredients in this case. Ferts/CO2 and lights need to be balanced and then it's
a good idea to have most of your plants in similar growth speeds.
The more info you can include about the light fixtures and how far they are from
them to the top of the substrate will help to determine how intense the light is in
this tank. And what you are adding for ferts and how often would be next.

The shortest distance between any two points is a straight the opposite direction...
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post #4 of 5 (permalink) Old 06-15-2016, 05:18 PM
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Lots more info is needed before anyone can attempt even a wild guess at what the problem might be.

Close up pics of the damaged plants
At least one full tank shot
Exactly what you are dosing, how much, how often
Exactly what kind of light, distance from substrate
CO2 info, how it's diffused, how much, bps, etc
Filtration / circulation equipment
Any other known water parameters

Provide as much of this info as you can, then someone may be able to offer good advice.

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post #5 of 5 (permalink) Old 06-15-2016, 05:58 PM Thread Starter
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Here are some pictures as requested. These aren't the most damaged plants. I trimmed almost all of the bad leaves away last night. Sorry the images didn't come out that great. It was on my phone.

More info:
- Filtration is using two Fluval 306 canisters
- CO2 injection is using a CO2 inline reactor on one of the canisters
- BPS is too high to count. It's a stream pretty much but I'm sure I'm not gassing the fish or putting in too much CO2
- I don't know the PH or anything.
- I only added FloraPride fertilizer twice since I got the tank back in early April
- I use Aqueon water conditioner for dechlorination
- Lights are the fluorescent lights that came with the tank bundle. I haven't swapped out for LEDs or anything yet.
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Last edited by No.92; 06-15-2016 at 06:09 PM. Reason: info
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