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Please help! Some black spots on live plants!

This is a discussion on Please help! Some black spots on live plants! within the Beginner Planted Aquarium forums, part of the Beginner Freshwater Aquarium category; --> Originally Posted by lewisarbucks My mobile doesn't seem to let me upload pics here, any advice? Thanks You can use Photobucket. I use my ...

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Please help! Some black spots on live plants!
Old 04-14-2013, 05:50 PM   #11
 
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Originally Posted by lewisarbucks View Post
My mobile doesn't seem to let me upload pics here, any advice?
Thanks
You can use Photobucket. I use my phone 98% of the time to do stuff on this forum. I upload photos to photobucket from my phone then get the link from photobucket and paste it here for a pic. I can also upload directly here from phone but I have to use the website and not the mobile site which tends to take longer soo photobucket is fast for me.
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Old 04-14-2013, 07:05 PM   #12
 
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i just re discovers the "go advanced button" this is where u can upload pics directly from your comp instead of having to use photo bucket imageshack etc etc. once you click go advanced towards the bottom theres a button that says manage attachments.
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Old 04-14-2013, 08:01 PM   #13
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i just re discovers the "go advanced button" this is where u can upload pics directly from your comp instead of having to use photo bucket imageshack etc etc. once you click go advanced towards the bottom theres a button that says manage attachments.
... and if you are on a mobile device with a camera, depending upon the device, you get another option to take a picture or choose existing when you select "choose file". With an ipad you can only do one picture per post though, bit of a pain. With an iphone the file is too large.

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Old 04-15-2013, 07:13 AM   #14
 
http://i1330.photobucket.com/albums/w565/lewisuae/rps20130414_094759_zps226ecb4a.jpg

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Last edited by lewisarbucks; 04-15-2013 at 07:16 AM..
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Old 04-15-2013, 10:35 AM   #15
 
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I looked at the picture... thanks.
I'm not seeing any new bright vivid green growth, no fresh new leaves on the tips. My opinion is this will slowly die off if you don't give it some fertilizer. Get a small bottle to start or a sample pack if the store has them, and dose properly to your water volume. Keep watch... I usually see new growth, a full new leaf on every plant within 2 days. If it works then keep your eyes open for a bigger bottle on sale... you will need it. It can be expensive so once I get to about a half a bottle left I start watching the sales so I don't run out.
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Old 04-15-2013, 11:09 AM   #16
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I looked at the picture... thanks.
I'm not seeing any new bright vivid green growth, no fresh new leaves on the tips. My opinion is this will slowly die off if you don't give it some fertilizer. Get a small bottle to start or a sample pack if the store has them, and dose properly to your water volume. Keep watch... I usually see new growth, a full new leaf on every plant within 2 days. If it works then keep your eyes open for a bigger bottle on sale... you will need it. It can be expensive so once I get to about a half a bottle left I start watching the sales so I don't run out.
Ditto, it's not catastrophic

With a 29 gallon the amount of fertilization you need will be about 1/2 a capful per week... a small bottle will do you for some time and it's not expensive unless you are dosing a large tank. I think it was around $10 for a 250 ml... maybe it was the 100ml, I just bought the smallest they had on the shelf at the time. The dose is 5ml for 60 gallons.... even the 50ml will give you almost 6 months but you CAN buy it in 5 gallon jugs...

Jeff.
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Old 04-15-2013, 11:34 AM   #17
 
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The "black spots" I can see on the green leaves is probably algae, although the photo is small, but I'm fairly sure this is algae. I agree you should use a complete liquid fertilizer like Flourish Comprehensive Supplement once a week, but we also need to look into the light situation.

You have two T8 tubes over this 29g tank, and they are on for 9-10 hours daily. I would get some floating plants to reduce the light a bit. Might also need to reduce the photoperiod. But I would like a closer photo of that leaf to be certain. But I'm almost certain this is a red/green algae (which looks black); I have this here and there, always on leaves closest to the light except in one tank when I was over-fertilizing.

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Old 04-15-2013, 11:38 AM   #18
 
Thanks alot guys for the help! Will get some fertiliser asap!
Byron, what floating plants would you suggest for this aquarium and how could I solve the lighting problem? If it is algae, is that solved by simply lowering the light intensity or not having it on as long as I am? Thanks again:)

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Old 04-15-2013, 11:45 AM   #19
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The floating plants will help the potential lighting issue as they will provide shade over the water.

I have a very hard time getting true floating plants where I am, other than duckweed , but even that works and has it's advantages. I am starting to use pennywort as a floater instead of a stem and finding that I like it. It's controllable as all the leaves are on stems so you can sort of place it or even capture the stem against the glass.

Otherwise, dwarf water lettuce (long roots though), amazon frogbit , hornwort , salvinia , and water sprite are all in the profile (click on highlighted names to go there). There are others that you can grow as floaters, some stems can be left floating and do not too badly.

Do the spots rub off?

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Old 04-15-2013, 11:53 AM   #20
 
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Originally Posted by lewisarbucks View Post
Thanks alot guys for the help! Will get some fertiliser asap!
Byron, what floating plants would you suggest for this aquarium and how could I solve the lighting problem? If it is algae, is that solved by simply lowering the light intensity or not having it on as long as I am? Thanks again:)

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The green and red types of algae occur naturally in any aquarium. With live plants, we simply want to find the balance of lighting/nutrients to keep algae under control. Algae is not at all bad, except when it spreads on plant leaves which will smother the leaf and kill the plant.

I have one T8 tube over my 29g tank, and that is moderate light. You are a bit above this with two tubes, so it is important to ensure there are sufficient nutreints for the plants to use this light; the duration of the light period can be altered in achieving this balance. It is somewhat experimental, as every aquarium is biologically different. You have stem plants, and they are fast growing which means more nutrients and more light needed, so we should be able to find the balance.

If this were my tank, I would reduce the daily light to 8 hours. The best way to do this is with one of those lamp timers. You can have the photoperiod any time you want, when you are normally home to view the tank obviously. Ambient light such as daylight and room lights is also part of the equation.

Floating plants like Water Sprite are ideal. Click the name for the profile with photos. Brazilian Pennywort also does well left floating.

Flourish Comp once weekly, floating plants, and reducing the light should work.

Byron.
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