Unfortunately not kirsty. Different strokes for different folkes would be the correct and absolute answer.
There's 2 systems at work here.
The skilled observant edge cutting guy's that push the boundaries of our knowledge. We learn lots but they gas fish with CO2. Clive admits it, suspect barr has done it in the past.
The newbies that take it nice and slow (big ramp ups, low injection rate)... pros less likely to gas fish... cons may have unhealthy plants...
Newbies also gas fish, usually when they chase higher CO2 levels.
I would never push the boundaries on CO2 because my fish are paramount, others experiment, suspect their plants are the important bit 😉
Just my musings, cary on with the discussion...
Couldn’t agree with you more as regards fishies.
My first bash with Co2 dial in, prior to the first regulator fail - whacked up, tweaked a bit, sorted in a couple of days. Much the same 2nd time after I got it working again. 3rd time, with new regulator, has taken me nearly 2 weeks…..and I’ve left it at 0.9 drop, because now I have fishies and I’m mildly paranoid!
I also re-plumbed the tank cos they didn’t like the flow. 😂