Name That Deficiency!!!!!!! - The Planted Tank Forum
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post #1 of 17 (permalink) Old 03-24-2007, 05:30 AM Thread Starter
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Name That Deficiency!!!!!!!

Like the title says guys help me figure this one out. This is a 120gal tank with 2x175 MH lights that run for 8hrs a day. I have pressurized CO2 that should be at 30ppm (to confirm this tonight). The substrate is aquasoil. I dose 1/4 teaspoons of KNO3, and 1/8 teaspoon of K2SO4, PO4, and CSM+B, and 1/2 teaspoon Mg (epson salts) each day. I cut back from .5 teaspoons of KNO3 because of all my fish and I was getting really high nitrates on my test kit (like 80+). Let me know what you guys think and what I need to change so I can turn this tank back into the jungle it once was and can be again.













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post #2 of 17 (permalink) Old 03-24-2007, 05:40 AM
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are you dosing all micro and macro at the same time?
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post #3 of 17 (permalink) Old 03-24-2007, 06:05 AM Thread Starter
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yes I have always done it that way. My dad also does it that way and he is not having the same problems I am. I dry dose everything. I also use almost all RO water.
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post #4 of 17 (permalink) Old 03-24-2007, 06:14 AM
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Hows your FE? Phosphates?
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post #5 of 17 (permalink) Old 03-24-2007, 06:20 AM
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K & Ca
potassium & calcium


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post #6 of 17 (permalink) Old 03-24-2007, 06:20 AM Thread Starter
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Not sure about FE....I will test Phosphates in the morning but who knows about the kit
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post #7 of 17 (permalink) Old 03-24-2007, 06:21 AM Thread Starter
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what makes you say that mistergreen?
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post #8 of 17 (permalink) Old 03-24-2007, 06:22 AM
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That's an awful lot of phosphates daily. Have you checked your phosphate level? I bet it reads over ten.

My guess is that there isn't enough CO2....how many bubbles/second and what diffusion method do you use?
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post #9 of 17 (permalink) Old 03-24-2007, 06:29 AM Thread Starter
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I use 2 of the redsea 500 diffusors. I run probably 7-8 bubbles a second between the two. I have had to turn it down slightly because my fish begin to gasp at the surface later in the day.
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post #10 of 17 (permalink) Old 03-24-2007, 06:43 AM Thread Starter
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Sorry its an 1/8 teaspoon of K2SO4, PO4, and CSM+B that I add each day.
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post #11 of 17 (permalink) Old 03-24-2007, 10:20 AM
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looks like light/co2 to me... with those MHs you should be alright on light... are you sure your CO2 rate is where it should be set? sometimes near the end of a co2 bottle mine gets unpredictable...

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post #12 of 17 (permalink) Old 03-24-2007, 12:29 PM
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Recheck your CO2 levels and phosphates, that's a start. If you don't have a Lamotte test kit, your Nitrates may or may not be that high.

How often do you do a water change?
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post #13 of 17 (permalink) Old 03-24-2007, 06:55 PM Thread Starter
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I also just tested my phosphates and nitrates. Phosphates looked to be between .1 and .2 and nitrates were somewhere between 0 and 10. I am red green colorblind so i have a REALLY hard time figuring out what color these things are but they should be somewhere within that range, assuming the test kit is even accurate. I do a 30% or so water change once a week.
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post #14 of 17 (permalink) Old 03-25-2007, 04:19 AM
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next step would be reassessing your CO2 - what's your pH and KH?
Or try the pH-change after outgassing method (I would suggest doing both and seeing what the results are).
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post #15 of 17 (permalink) Old 03-25-2007, 07:19 AM Thread Starter
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My drop checker using a standard 4KH solution shows green, which unless I am wrong that means my CO2 should be at about 30ppm. Thanks again for the help guys.
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