You sure it isn’t more? I’m almost positive it’s more - 10lbs in a week + I’m not sure how much was offgassed.That would probably mean 60ppm++
That would probably mean 60ppm++
You are correct sir on this one. You can refer to my previous post with dash, parenthesis and the rest. 😇Surely way more than that? Does bromothymol blue not go yellow at 6.0 pH? The usual pH/KH charts suggest a CO2 level of 240ppm for 8dKH and 6.0 pH. Chances are the pH was even lower, down to 5.0pH perhaps - the tables don't seem to go that far!
Paul, you gotta be less cryptic buddy. Lol. Edit: the ++?You are correct sir on this one. You can refer to my previous post with dash, parenthesis and the rest. 😇
I think lots of us have done this with minimal if any Ill effects on fish. And in many cases it’s actually a good call for the overall health I think.Mine is always urine yellow. All fish are doing fine 🙂
The rate of out-gassing isn't a linear relationship, it depends on the concentration gradient between the gas exchange surface of the tank water and the atmosphere. As you add more gas proportionally more will be out-gassed because the atmospheric CO2 concentration remains the same.I’m almost positive it’s more - 10lbs in a week + I’m not sure how much was offgassed.
I’m unconvinced about rubisco adaption myself. And I’ve read lots of papers on it. I’ll find them.PH 1.38 but i haven't checked in some time. No reason for it to be any much different considering I haven't changed things drastically. Perhaps slightly less because with the new introduction of fish and shrimp I slightly reduced CO2 to accommodate them, but it's pretty minimal.
I don't know about rubisco and all those technicallities however the problem is not really the CO2 but most probably the acidity induced by the CO2. After all, emersed plants are exposed to 400ppm+++ and more, so CO2 in itself is not the problem but what it generates in the water. That is probably why plants have a lower ceilling limit CO2 wise when submersed.
Fick’s law.Hi all,
The rate of out-gassing isn't a linear relationship, it depends on the concentration gradient between the gas exchange surface of the tank water and the atmosphere. As you add more gas proportionally more will be out-gassed because the atmospheric CO2 concentration remains the same.
If you limited gas exchange between the tank and the atmosphere (with a tight fitting lid) it would slow the rate of CO2 use, by reducing that gradient.
I’m with you - it’s the pH not the concentration.That definitely could be an issue.
cheers Darrel
Lol, I'll be as impartial as I can..So John, does the Macrandra look pretty?
The judge has spoken.Lol, I'll be as impartial as I can..
I think the ugly duckling turned into a beautiful Swan.
<"Thank you">. I couldn't remember what it was called earlier, I knew it wasn't <"Henry's Law ">, but I couldn't remember whose it was.Fick’s law.
To be honest Josh I've been shaving the co2 ramp time down for a few months ever since I read this post of yours.Everyone shaving 30 minutes off ramp?
A couple of issues I think are relevant.You sure it isn’t more? I’m almost positive it’s more - 10lbs in a week + I’m not sure how much was offgassed.
The second is that it seems some are equating this to proving that moderate CO2 is better.
I've done this numerous times and for me that answer is always more is better. But that's within a "reasonable" range. I keep fish so I've never kept it at anything more than a 1.5 pH drop.
I am sure there is a law of diminishing returns with CO2
Fun!To be honest Josh I've been shaving the co2 ramp time down for a few months ever since I read this post of yours.
Dialling in the CO2 injection Rate and CO2 Profiles
Shave off an hour? or two? Just do it. LOL-- get the algaes, then claw it back the other way by 10 minutes.Having said that I have a looooong ramp time (4hr+ to reach 1ph drop) so loosing 30 mins off that is in no way a scientific backing of your theory.
Up to now I haven't seen any major drawbacks from not being bang on 1ph drop exactly when the lights turn on, time will tell I guess.