alternanthera reineckii "Pink" deficiency - The Planted Tank Forum
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post #1 of 13 (permalink) Old 01-09-2017, 04:03 PM Thread Starter
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alternanthera reineckii "Pink" deficiency

Hi,
My alternanthera reineckii pink has been degrading steadily Day by day for a week now.

I'm quite positive it isn't snails, as I haven't seen any in the tank at all!

I do EI dose, but am thinking this must
Be potassium deficiency?

I currently use this EI kit in the link below and wonder if I am lacking anything?

http://www.aquariumplantfood.co.uk/f...arter-kit.html

I have ADA aquasoil and the tank is only 6 weeks old.

Does anyone have an insight into what I can do to help?

I am blasting CO2 into the tank at 10BPS (enough to turn the drop checker green / yellow.)

Also I have 20 Amano shrimp and 5 RCS.

Hope you can help. Thanks!
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Last edited by roryf; 01-09-2017 at 04:27 PM. Reason: post originally from phone, now laptop
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post #2 of 13 (permalink) Old 01-09-2017, 11:53 PM
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What kinds of catfish do you have in the tank? It looks like the plant is being eaten.

There is virtually ZERO chance of it being a potassium deficiency if you are following EI. Even at half to third of EI dose, you will not see potassium deficiency.

BTW, potassium def is usually seen as small pinholes in older, lower leaves.
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post #3 of 13 (permalink) Old 01-09-2017, 11:56 PM
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NOM NOM NOM NOM somethings eating your reineckii!
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post #4 of 13 (permalink) Old 01-10-2017, 06:39 AM Thread Starter
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I have the following stock in the tank
10 rummynose tetra
10 ember tetra
25 amano shrimp
5 red cherry shrimp.

That's all I have!

Worried now, it's strange because no other plants are getting eaten!

Is there a chance that it could be my amano shrimp?

Little update.

I trimmed the plants back. (I couldn't
Bare to leave it's stems, so I left a few leaves)

Hopefully this will grow back.

The lights are off at the moment, I will check when I wake up to see if any snails have smuggled theirselfs into the tank.

Would still love more opinions from people if possible, as I have had many different responses around the internet and I can't get a definitive answer!

Thanks.
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Last edited by Darkblade48; 01-11-2017 at 02:42 PM. Reason: Please use the edit function for back to back posts to keep threads cleaner
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post #5 of 13 (permalink) Old 01-10-2017, 10:17 PM
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what size is the tank? I'd say it's the shrimp, maybe a couple of them aren't getting enough food? I still think it's snails, keep a close eye it can only take a few.
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post #6 of 13 (permalink) Old 01-11-2017, 06:36 AM Thread Starter
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Tank size is 110 US gallons.

The snails will come out at night right? I turned the lights on at 6am today (I live in England). And there were no snails at all.

It is quite possible it is the amano shrimp, because my algae levels are pretty much non existent at the moment! Maybe I need to start feeding them sometething that my tetras won't be interested in.

Any suggestions?

Thanks, Roryf.
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post #7 of 13 (permalink) Old 01-11-2017, 07:17 AM
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Maybe light issues? I would also start supplementing the shrimps feeding. Blanched vegetables or shrimp specific food will work.


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post #8 of 13 (permalink) Old 01-11-2017, 12:53 PM
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My AR started to look like that, although not to that extent, and adding additional potassium did help. I was dosing EI as well, but the potassium was not enough. Have you noticed any potassium deficiency signs in any of your other plants (ie pinholes, yellowing at edges)? Certain plants do intake a lot more potassium than others, and it's possible somethign else is taking it all. What other plants do you have in the tank? It could be something eating them, but I don't see anything in your livestock list that would do it. If I were you I would buy some Potassium Sulfate and add some of that to your regular EI dosing. It can't hurt as you can dose quite a bit of potassium without any issues.
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post #9 of 13 (permalink) Old 01-11-2017, 01:12 PM Thread Starter
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Here is the EI kit I am using, and the dosing schedule is on their page.

Ei Starter Kit - Starter Kits - Dry Chemicals - Fertilisers

If someone could take a quick look at it and tell me whether im best adjusting it? or whether there is a better guide I could follow?

I am happy to by potassium sulphate if you think I need it.

Regarding whether other plants look like they are lacking potassium I cant really say. My bacopa is currently in its transitioning stage between emersed and submersed growth, so it doesn't look 100% healthy at the moment anyway. whereas everything else looks okay.

My HC seems to be slowly spreading across the front of the tank, so hopefully I am doing something right!

Thanks for your help.

Last edited by roryf; 01-11-2017 at 01:14 PM. Reason: added more.
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post #10 of 13 (permalink) Old 01-11-2017, 01:53 PM
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Quote:
Originally Posted by roryf View Post
Here is the EI kit I am using, and the dosing schedule is on their page.

Ei Starter Kit - Starter Kits - Dry Chemicals - Fertilisers

If someone could take a quick look at it and tell me whether im best adjusting it? or whether there is a better guide I could follow?

I am happy to by potassium sulphate if you think I need it.

Regarding whether other plants look like they are lacking potassium I cant really say. My bacopa is currently in its transitioning stage between emersed and submersed growth, so it doesn't look 100% healthy at the moment anyway. whereas everything else looks okay.

My HC seems to be slowly spreading across the front of the tank, so hopefully I am doing something right!

Thanks for your help.
That kit gives you all the basic ingredients you need for standard EI. If you are following their formula, rather than just dry dosing, then it's a little harder to tweak things though. I prefer dry dosing since I know exactly what I'm adding to the tank with each dose. And then I can tweak it from week to week as needed, until you get things really dialed in. And I do think EI needs to be tweaked a little, since every tank is a little different. It is a very good starting point though. And the formula may work just fine for you. It certainly is less complicated and many prefer that route.

That being said, with the standard EI ingredients, tweaking Potassium doesn't really work. You could add more Potassium Nitrate (KNO3) to get more Potassium, but then you also add more nitrates. That could cause a build up of Nitrates over time that might not be good for your fish. The same goes for adding more Potassium Phosphate (KH2PO4). That's why I like having some Potassium Sulfate. It allows me to tweak the Potassium levels individually without adding more Nitrates or Phosphates. And it's really inexpensive, so in my opinion it's worth having. You'll have to decide though, whether you want to get more complicated and learn EI in depth so you can tweak things. You may prefer to keep things simple and stick to the formula. Getting AR to look good might require some more work though.

This is just my opinion and others may have differing opinions. Hopefully others will chime in and give you their insight as well.
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post #11 of 13 (permalink) Old 01-12-2017, 09:28 AM Thread Starter
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That's fantastic information!

I want to learn EI in depth and will work on it.

I'll follow your advice, and do have any sites you can recommend that teach the basics?
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post #12 of 13 (permalink) Old 01-13-2017, 10:18 AM
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Quote:
Originally Posted by roryf View Post
That's fantastic information!

I want to learn EI in depth and will work on it.

I'll follow your advice, and do have any sites you can recommend that teach the basics?
UK Aquatic Plant Society has a good write-up on EI. Also there are probably some good threads on here about fertilisation. Check out videos by Dennis Wong as well.


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post #13 of 13 (permalink) Old 01-13-2017, 11:01 AM Thread Starter
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Will do,

I have seen Dennis wongs videos quite a bit,

I'm hoping that I can get the plants back to full health and then post a pic once it's all better, however it's pretty much just a load of stems at the moment!
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