Impact Of High Kh On Co2 Dosing

Sahiri

New Member
Sep 25, 2018
18
2
3
120
Washington State
Greetings!

I am looking for some info on the impact of high KH on CO2 dosing. Our new 75g tank is very fresh. Here are the parameters:

Cycle has been started using media from my 30g tank.

75g tank
78-79 degrees
pH 7.6
KH- off the API chart 400+ppm
GH 125ppm
NO3- 0ppm
NH3/NH4- .25ppm

CO2 is on at a moderate 1bps.

Thank you in advance for the advice!
 

burr740

Micros Spiller
Moderator
Feb 16, 2015
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Higher KH will require a little more gas to reach the same concentration...if thats what you mean by impact.

Regardless of that, 1 bps is nowhere close to enough for a 75 gal tank. That might as well be none.

Think 7-10 bps. A lot obviously depends on how efficient your method of diffusion is, how much light you have and what kind of plants, and many other things. So its impossible to say exactly how many bps you should target. But 1 bps is not even close
 

Sahiri

New Member
Sep 25, 2018
18
2
3
120
Washington State
That is exactly what I am looking for.

CO2 method:
We are using compressed CO2 with a 25mm(I think, I can measure) diffuser. The diffuser is positioned under a circulation pump. Most of the bubbles are being carried up and injected into the water column quite nicely. While I don't have exact math, I would say direct loss (up and out) is 10-15% or less.

Lighting:
Two (2) Lifegard High Output 48″ Full Spectrum (35w)
Fluval Sea Marine & Reef LED 48" (59w)

Plants:
Rotala indica
Hygrophila difformis
Altenanthera Reineckii