Why can't I keep plants alive - The Planted Tank Forum
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post #1 of 35 (permalink) Old 05-28-2013, 10:28 PM Thread Starter
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Why can't I keep plants alive

Have about medium light Fugeray 19" above eco complete. Root tabs, Flourish comprehensive, excel and iron.

Amazon sword still showing iron deficiency in new growth. The ludwigia at the top the leaves are turning white then disintegrating. Looks like all the bottom stems are rotted. Bacopa stems look rotted. Lily gets blue spots, then disintegrates.

So what to do now. Am I keeping the wrong plants, should I just get rid of these and have a tank full of anubias since that's the only damn thing I can grow????






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post #2 of 35 (permalink) Old 05-28-2013, 10:41 PM
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What you need is CO2 my friend. Excel helps, but is no substitute. I was able to grow ludwigia without it still though. My light was low in this case. I did get stem rot as you have as well, but mainly when light shaded the lower portions. What you can try is try doubling the dose of Comprehensive to rule out ferts as the issue. You use a pretty inert substrate so water column dosing is going to help a lot. Otherwise, just be careful when you plant, try not to break the stem. Trim back the stem to a healthy part of the plant to help the plant focus on growth not recovery.
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post #3 of 35 (permalink) Old 05-28-2013, 10:49 PM Thread Starter
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I'm pissed because of the amount of people with low tech, no CO2 tanks that are successful. I just want a simple planted tank.

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post #4 of 35 (permalink) Old 05-28-2013, 10:52 PM
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I'm low tech and my plants grow, but slowly...

I just add potassium and regular flourish once per week.

Excel is really only for planted tanks with co2, imo.

Also if you have any plants with red in them, you'd want to dose iron.

Edit: Amazon swords, need potassium definitely.


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post #5 of 35 (permalink) Old 05-28-2013, 10:57 PM
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You have to find a right balance between light, co2 and fertilizer. What size fugeray do you have? You are most likely lacking macro nutrients.
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post #6 of 35 (permalink) Old 05-28-2013, 11:06 PM
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The last picture shows river rocks, they are inert and won't provide any nutrients to your plants. CO2 aside, it appears you need to balance your light and nutrient needs. Finnex has PAR charts, see what levels you are achieving, your light might be too weak for your setup.

We've all had tanks that "should work", but dont. keep at it and good luck!


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post #7 of 35 (permalink) Old 05-28-2013, 11:26 PM
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Re: Why can't I keep plants alive

Comprehensive is traces, you need to dose NPK also. Let couple of stems of Ludwigia float, they should start growing roots in several days.

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post #8 of 35 (permalink) Old 05-28-2013, 11:39 PM
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Looks like nitrogen deficiency.


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post #9 of 35 (permalink) Old 05-28-2013, 11:40 PM
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I thought comprehensive had NPK? Or was it just a bit of everything?
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post #10 of 35 (permalink) Old 05-28-2013, 11:41 PM Thread Starter
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There is 2" of eco complete under the gravel.

I've read Hoppy's lighting guide many times, it made me decide on my 30" Fugeray to give me medium light (just about PAR of 30)

I can get potassium. Still looking for the macro nutrients, I can't find the right stuff and don't have much money

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post #11 of 35 (permalink) Old 05-28-2013, 11:46 PM
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Have you measured you GH? My plants did poorly until I realized my GH was low. By using GH booster my plants started doing much better.
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post #12 of 35 (permalink) Old 05-29-2013, 03:33 AM
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30 par is low-medium light. Dry frets can be found online for cheap and will last you a long time. Comprehensive has very low amount of macros that it can be ignored.
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post #13 of 35 (permalink) Old 05-29-2013, 04:19 AM
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Why can't I keep plants alive

Look up how to set up a dirt tank. I have a couple and plants grow like crazy. It's lighted with regular light bulbs and a little indirect sun light. The bacteria in the dirt and the fauna produce something like 20ppm of co2 for the plants. All you need to do is feed your animals and change the water whenever. I tend to under stock on the animals.

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post #14 of 35 (permalink) Old 05-29-2013, 04:33 AM
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It looks like your top gravel pebbles may be to big.It may be the size of the pic too.
This can prohibit good root growth for your plants.
http://www.aquatic-eden.com/2007/04/...-aquarium.html
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post #15 of 35 (permalink) Old 05-29-2013, 04:50 AM
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I, as well as a lot of others I suspect, use Flourish for micros actually. You most definitely need to be dosing a little bit of Macros.

I dry dose a little Potassium and Phosphate in my low tech tank.
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