Nutrient Check Up - The Planted Tank Forum
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post #1 of 6 (permalink) Old 11-07-2006, 06:31 AM Thread Starter
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Nutrient Check Up

Here is my standard weekly nutrient regiment:

130 watts total 30ppm CO2

20 ppm Nitrate
12 ppm Potassium
1g CSM+B
2 ppm Phosphate

50% water change weekly too right before redosing

Since I started this standard program my tank has become very regulated and the BBA has almost become nonexistant too. Now I think I am ready to change it up a little bit. I know that nobody can just tell me what to do so I ask for some ideas and suggestions.
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post #2 of 6 (permalink) Old 11-08-2006, 06:05 PM
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How big is the tank? Is it the 80g in your sig.?

So, you only dose once, after weekly water change of 50%?
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post #3 of 6 (permalink) Old 11-09-2006, 03:43 AM Thread Starter
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I have only been dosing once a week because i tried dosing multiple times and I just messed it all up because I don't know which nutrient to add more of as the week goes on. I went to one just to regulate things and it has really worked out for me.
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post #4 of 6 (permalink) Old 11-09-2006, 04:22 AM
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I've heard around here that if you are having good and healthy growth, then you are doing it right. Don't change your dosing schedule if your allready getting good growth.
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post #5 of 6 (permalink) Old 11-09-2006, 04:43 AM
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Try doing it(same amount) 2x a week, that should do fine at 130w.
When you want, try 3x a week with 260w and do say 75% water changes etc.

Make sure the CO2 is good and you have good surface movement/a few ripples etc, you can always add a bit more CO2, shut the CO2 off at night.

when you have less nutrient limitation, the plants will also use more CO2, as plant biomass increases , the CO2 uptake will also increase.
So keep pruning the weeds back to maintain a somewhat stable plant biomass.

The added current and surface movement will help stabilize CO2 and prevent low O2 as well, with good plant growth, there should be plenty of O2 most of the 24 hour cycle and at night since you have some decent surface movement, you will still ahve good O2 levels. Surface movement also prevents excessive CO2 build up in the tank as well, if you have none, the CO2 can buld up easier and higher ppms before you see the fish gasping and then when they do, it's pretty bad.

The off gassing from the surface movement allows you to maintain a fairly stable CO2 level, not too much, not too little and still have good O2 levels even if the plants are not growing at all.

Tom Barr

Tom Barr
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post #6 of 6 (permalink) Old 11-09-2006, 05:32 PM Thread Starter
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I will try twice a week here in another week

I have the FX5 which gives a fair amount of surface movement and when the CO2 is off at night the ph goes up from 6.4 to 6.8

My fish don't gasp for air except for my angles on occasion but never consistently. Should I lower my CO2 just a bit?
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