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Originally Posted by Supercoley1  This is an old one. lol |
you can say that again.
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Originally Posted by Supercoley1 I haven't read your papers as I don't have time for that nor need to. |
you aren't missing anything Supercoley1. I read it and winced at the flawed conclusion. No, I'm not a chemist / science guy but I can see through all the puffery. A flood of numbers does not equal a valid conclusion. The paper's experiments lack control and comparison. I'm used to seeing
comparisons of dry weights of plant mass after a growth cycle / O2 charts showing how one tank differs from another during growth cycles.. etc and so forth. The 'paper' reaches too far without collecting valid experimental data and makes a predetermined conclusion. That is not good science and it is misleading.
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Originally Posted by Supercoley1 The problem with using a Ph controller is that we want stable CO2 but this does not mean exactly the same all around a tank. |
absolutely. better to save money on the bells and whistles - and work to manage good flow / efficient diffusion / and stable delivery of gas. That is what really matters.