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Fine tuning CO2

DaveWatkin

Member
Joined
26 Oct 2020
Messages
150
Location
Aberdeen, UK
Hey Guys,

Been monitoring my CO2 levels for a couple of days and wanted to see if you experts can see anything I should maybe adjust?

As you can see in the data, I already moved my CO2 on time to 2 hours before lights on the 19th as I noticed it wasn't near enough to steady at lights on when I monitored on the 18th. I have also added an extra half hour to both prior to the 23rd, I am adding a half hour each Saturday currently to bring it up to 8 hour photoperiod.

Dropchecker is always green as CO2 is not fully dissipating overnight so only a 0.6-0.7 ph drop each day but I estimate I am at about 25ppm (other non CO2 tanks using same water have PH of about 7.35) which is fine for me, plants are thriving and I have no algae.

Should I bring the CO2 time forward slightly more to have a smoother lighting period as I notice it is still dropping slightly after lights on. I know @ceg4048 will straight away advise adjusting flow or diffusion as the drop is too slow but I've tried a few things with what I have and this is the best setup I've found for getting the bubbles across the whole tank and a good lime green DC. The filter pump can be turned up but then it's like a whirlwind and there are RCS flying everywhere. I loose a lot of gas at the surface but I think with this size tank there isn't much other option without going external and I'm not looking to change any equipment just now.

Am I making any major mistakes?
 

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ceg4048

Expert/Global Moderator
UKAPS Team
Joined
11 Jul 2007
Messages
9,182
Location
Chicago, USA
Should I bring the CO2 time forward slightly more to have a smoother lighting period as I notice it is still dropping slightly after lights on. I know @ceg4048 will straight away advise adjusting flow or diffusion as the drop is too slow but I've tried a few things with what I have and this is the best setup I've found for getting the bubbles across the whole tank and a good lime green DC. The filter pump can be turned up but then it's like a whirlwind and there are RCS flying everywhere. I loose a lot of gas at the surface but I think with this size tank there isn't much other option without going external and I'm not looking to change any equipment just now.

Am I making any major mistakes?
Hi Dave,
The most important "parameter" is plant health, period. If the plants are doing fine then stop right there and leave well enough alone. Our advice is normally aimed at those who are struggling to get their plants healthy. There is no point in tinkering if you've achieved the goal. 🏆

Cheers,
 

DaveWatkin

Member
Thread starter
Joined
26 Oct 2020
Messages
150
Location
Aberdeen, UK
Well that's good to hear. Plants are doing great, just trimmed the MC less than two weeks ago and is already thick again and ready for another trim this weekend.
 

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