Plants not doing great, need fert advice - The Planted Tank Forum
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  • 2 Post By philipraposo1982
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post #1 of 9 (permalink) Old 01-14-2016, 03:59 PM Thread Starter
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Plants not doing great, need fert advice

I currently have a 29 gal low tech heavily planted tank. Almost all my plants are low care plants. (Javas, Anubis, etc) some are doing great and flourishing and others seem to be starving. Some leaves have small holes forming but the most common symptom I am seeing is very dark spots ranging from dark green to black. A lot of the leaves are sort of curled over at the edges as well. Another thing I noticed on my faster growing more delicate plants is the older leaves seem to turn reddish brown and just disintegrate. I know I've got some serious deficiencies I need to get on top of.

I am using miracle grow organic capped with regular black sand.

Lighting is 2 finnex ray2s so I can't imagine lighting is the issue.

I am not at all new to aquariums but I am somewhat new to heavily planted tanks with soil, just wondering what ferts/ minerals I need to start adding with the symptoms described. I was thinking of starting flourish along with flourish trace.
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post #2 of 9 (permalink) Old 01-14-2016, 04:06 PM
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Too much light for no co2 imo. Only use one of them. 7-8 hours max.

Make sure to have good flow, proper.macro and micro ferts.

Good surface agitation and don't overfeed. Keep up with water changes and manually remove algae covered leaves or dying ones.

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post #3 of 9 (permalink) Old 01-14-2016, 04:09 PM
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You say your low tech but that seems like a lot of light for a 29. Any algae problems? Sounds like your plants are using up nutrients because of the light. I would take a serious look at lighting and low tech ferts re: Tom Barr's.

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post #4 of 9 (permalink) Old 01-14-2016, 04:14 PM
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i agree... too much light with no co2... dark green you see on the leaves are probably green spot algae because of too much lighting... either add some form of co2 or reduce lighting..

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post #5 of 9 (permalink) Old 01-14-2016, 04:26 PM
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WAY too much light for a low tech, one ray 2 is probably too much without co2
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post #6 of 9 (permalink) Old 01-14-2016, 04:39 PM
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Yup if its sitting on the rim I will agree even one woukd be difficult unless you have alot of faster growing plants.

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post #7 of 9 (permalink) Old 01-14-2016, 05:51 PM Thread Starter
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Ok, I figured when I set up this tank it may also end up being my first endeavor with co2. I will do some research on here before diving into a setup, I would like to keep it as simple and low maintanence as possible. As for liquid ferts would it be worth getting any? Or should I just start with the addition of co2 and go from there?
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post #8 of 9 (permalink) Old 01-14-2016, 06:30 PM
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See https://www.plantedtank.net/forums/11...-regimes_.html for what you should be using to fertilize the plants. It would also help to use Seachem Excel (or Metricide 14 day) dosed at 2 ml per 10 gallons of water, every day.

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post #9 of 9 (permalink) Old 01-14-2016, 06:41 PM
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Going cheap and dirty can be done for co2 but I would advise against it. Get yourself a full line of dry ferts, they are very cheap in the long run as opposed to liquid ferts from pet shop where your overpaying 10x or more.

Your lights are your gas pedal, your currently flooring it and losing control. Take the foot off the gas and be gentle, this means losing one of the lights and possible raising up the other a few 3-4 inches. Or add some floating plants etc. Once you do this there is far less demand for nutrients and co2. But your still going to need to dose, just alot less. Reduce the photo period to 7 hours.



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