Problem with deficiency or something else (hydrocotyle-leucocephala) - The Planted Tank Forum
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post #1 of 20 (permalink) Old 07-14-2010, 10:55 PM Thread Starter
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Problem with deficiency or something else (hydrocotyle-leucocephala)

Hello

I need help with diagnose the problem. See photos:



and after few days:


I have many plants, and but only hydrocotyle-leucocephala makes a problem.
ph 6,8. Light: 0,7 Watt per liter, kH=4, NO3=10-15 ppm, PO4= 1ppm

The plant grows fast like others plants but leafs looks terrible (like no other plants in my tank)


Please, help, whats the problem?
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post #2 of 20 (permalink) Old 07-14-2010, 11:02 PM
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This plant grows fast and dies fast. To me it looks like these are old leaves ready to be removed.
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post #3 of 20 (permalink) Old 07-14-2010, 11:13 PM Thread Starter
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I don't think so. Problems started few weeks ago. Before it was growing and even 2-3 months leafs didn't die - old leafs was just bigger than new ones and no holes and no algs was on them.
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post #4 of 20 (permalink) Old 07-15-2010, 02:10 PM
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I need more info.


What is your fertilizer dosing regime?

Is the tank Co2 Injected?

How long are the lights on? Are they on a timer?

What type of lighting (T-8, T-5) and wattage?
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post #5 of 20 (permalink) Old 07-15-2010, 06:06 PM
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That leaf looks like its been chewed on to me- what fish do you have in your tank?





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post #6 of 20 (permalink) Old 07-15-2010, 10:09 PM Thread Starter
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tank 120cm x 40cm x 50cm

CO2 injected to 20-25 ppm
N, P and K - i dose when there is a need to keep N 20ppm, P- 1ppm, K-25ppm (but K i cannot mesure)
And MICRO i dose to keep Fe on level 0,3ppm.
Light: 3x 54W - T5 (2x 6500K philips DeLuxe, 1x 17000 Philips Activia ...) on timer: 9AM-8PM
Fishes:
otocintus
Pterophyllum scalare
Paracheirodon axelrodi
M.Ramirezi

But fishes doesn't do that.
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post #7 of 20 (permalink) Old 07-16-2010, 12:00 AM
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No plecos in the tank?

My sword leaves would look like that after plecos chewed on them.

You might try lowering your photoperiod some, 11 hours/day is rather long.





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post #8 of 20 (permalink) Old 07-16-2010, 12:05 AM
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Looks like classic GSA to me and lauras right. lower photoperiod to 8-9 hrs, turn co2 on 1 hour before lights and crank it up a notch.

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post #9 of 20 (permalink) Old 07-16-2010, 01:12 PM
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Quote:
Originally Posted by chad320 View Post
Looks like classic GSA to me and lauras right. lower photoperiod to 8-9 hrs, turn co2 on 1 hour before lights and crank it up a notch.
Ageed.


Quote:
Originally Posted by dimitri View Post
tank 120cm x 40cm x 50cm

CO2 injected to 20-25 ppm
N, P and K - i dose when there is a need to keep N 20ppm, P- 1ppm, K-25ppm (but K i cannot mesure)
And MICRO i dose to keep Fe on level 0,3ppm.
Light: 3x 54W - T5 (2x 6500K philips DeLuxe, 1x 17000 Philips Activia ...) on timer: 9AM-8PM
Fishes:
otocintus
Pterophyllum scalare
Paracheirodon axelrodi
M.Ramirezi

But fishes doesn't do that.


Looks like GSA and some BBA caused by an imbalance. I had exactly this happen in my tank when I started EI.

You say your running 162 watts of T-5 light on a 60 gallon tank? Yes? That's 2.7 watts per gallon, that is on the very high side I think. I had 1.8 watts of T-5 and ran into this very issue. I lowered my light WAY down to .9 wpg (very low I know but I am using stip lights that are only 1 inch from the surface of the water), I put the lights on a timer set to a shorter photoperiod, raised the Co2 to about 30-35ppm and am adding 2 caps of Excel per day.

This has completely solved the issue for me.

Good luck
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post #10 of 20 (permalink) Old 07-16-2010, 01:19 PM
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Quote:
Originally Posted by dimitri View Post
I don't think so. Problems started few weeks ago. Before it was growing and even 2-3 months leafs didn't die - old leafs was just bigger than new ones and no holes and no algs was on them.
Again, you are describing my tanks issue to a T.

Lowering your lights will lower the tanks demand for Co2 as a whole. As well if you can raise your Co2 up to 30-35 this should be like a 1 2 punch to the algae and deficiency issues you are having.

Lower light raise Co2.

Also Look into EI, it's easy and you'll no longer have to messure anything. I dose half EI on my low light set-up right now and everything is working out excellent.

I just love showing my tank!



I still have some GSA but it is slowly receding and the is BBA completely gone with some help form Excel..
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post #11 of 20 (permalink) Old 07-16-2010, 01:38 PM
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keep your P over 2ppm (3ppm wouldnt be bad) and raise co2 levels i bet it will clear up on its own.

Last edited by timwag2001; 07-16-2010 at 01:38 PM. Reason: forgot a word
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post #12 of 20 (permalink) Old 07-16-2010, 05:28 PM Thread Starter
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Sorry, my english is not good so i dont know what shortcuts BBA and GSA mean. Could you explain them to me?

This is my tank (foto from may, a dont have actuall foto) :

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post #13 of 20 (permalink) Old 07-16-2010, 08:02 PM
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BBA refers to black beard algae.

GSA refers to green spot algae.

Anthony


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post #14 of 20 (permalink) Old 07-16-2010, 08:15 PM Thread Starter
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ok. But why those algs grows only one plant hydrocotyle-leucocephala? Every other plant is totaly clear.
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post #15 of 20 (permalink) Old 07-16-2010, 09:53 PM
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Quote:
Originally Posted by dimitri View Post
ok. But why those algs grows only one plant hydrocotyle-leucocephala? Every other plant is totaly clear.

Your Amazon Sword looks like it is covered in clear spots and small holes? Yes? And the water surface has scum on it? yes? Itís hard to tell from the picture.

Again, these are similar issues I was having. Once I dropped the light, increased the Co2 and added non limiting fertilizers, all my issues have improved dramatically.

Surface scum disappeared, surface looks like glass.
Hair algae vanished (although assisted by Excel)
Plant deficiencies completely vanished
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