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Discussion Starter · #1 ·
I've done endless nights of research and according to the plants im not dosing them correctly. I'm not going to post how I did it because there tends to be those few on here that bash your techniques and thats not helping anyone. My ph is 7.6 but lowers slightly through out the week because of my pressurized co2. My aquarium is a heavily planted 125 gallon tank with driftwood. I change the water 50% a week. It holds German Blue Rams, Bolivian Rams and Apistogramma Cacatuoides. Also a few tiger barbs, Molly fry and corydoras.
My dry ferts are: KNO3, K2SO4, MGSO4 and Plantex CSM+B. I also have some seachem excel im using up the last of the bottle before switching to metrecide 14. These are all I have to work with for now. Please suggest a dosing regimine and schedule. I'd be glad to answer any questions.
 

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I'm not familiar with dosing with CO2 injected tank, but is there really a need for the excel or metracide 14 since your CO2 injection is providing the carbon? I know its Excel is suggested for non-co2 tanks to provide a consistent carbon source. I don't know if that would have anything to do with how your plants are doing though.

Maybe you aren't dosing enough ferts for the amount of plants and the size tank you have cause it sounds like you have all the ingredients for a good dosing regimen.

What is your lighting? that might have an impact.
 

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It looks to me like you're missing phosphorous/KH2PO4 which you will need to get, but dosing should be:

1 1/2 tsp KNO3 -mon/wed/fri
1/4 tsp KH2PO4 -mon/wed/fri
30ml or 1/4 tsp csm+b -tue/thu/sat
Gh booster If you have it - just after Sunday water change

And You shouldn't need excel at all with pressurized co2.

K2so4 is for extra potassium if you need it, but If you dose nitrogen/phosphorous to that chart then there should be enough potassium already.
 

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You'd need KH2PO4 as well for phosphates.
You can try getting my ferts calculator if you have an iphone or ipod touch.

for
KH2PO4 - .5 teaspoons
KNO3 - .7 teaspoons
K2SO4 - as much or little as you like, shoot for .4 tsp
CSM+B - .4 tsp
 

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Discussion Starter · #7 · (Edited)
Thanks guys well see if they work and ill order some kh2po4. I dose the Excel to keep brown algae down because it likes my micro sword. When I stopped the excel my plant growth slowed so i figured is keep going.
 
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