I do feel you are overcomplicating things, especially for so little anticipated gain (sorry what was the advantage again?), compared to what everyone else does, as well exposing yourself to killing all your fish if your boost diffuser system jams on.
I have had numerous timer failures in my years, most common is complete timer death, no display nothing. Does lead to algae obviously if CO2 timer fails. But second most common failure I have encountered is stopping of timer with output in what ever state is was on. One time I emptied 1 litre of EI macro solution into my tank giving 300ppm nitrate for a couple of days, no issues as nitrate is generally not toxic at these levels, contrary to popular incorrect knowledge. Second time it was a liquid carbon dump and this did kill fish and melt plants. I have much better timer control now.
If my CO2 failed to on, due to timer failure, then I would just end up with 30ppm CO2 24/7. Fine. Just a waste of CO2 during non light hours.
Couple of other issues I have been pondering on are:
- How will you know when to stop your boost diffuser (10 minutes ? 25 minutes ?) as, if it works, you will have a fairly limited time window, 5 minutes maybe, before you will start gassing your fish.
- CO2 is not very soluble in water and I suspect you will not be able to get enough CO2 to dissolve from a conventional diffuser into the water in order to raise the CO2 of 500litres in 30minutes as you hope for.
Sorry not convinced your idea gains anything helpful other than yet another way to kill your fish more easily.
I have had numerous timer failures in my years, most common is complete timer death, no display nothing. Does lead to algae obviously if CO2 timer fails. But second most common failure I have encountered is stopping of timer with output in what ever state is was on. One time I emptied 1 litre of EI macro solution into my tank giving 300ppm nitrate for a couple of days, no issues as nitrate is generally not toxic at these levels, contrary to popular incorrect knowledge. Second time it was a liquid carbon dump and this did kill fish and melt plants. I have much better timer control now.
If my CO2 failed to on, due to timer failure, then I would just end up with 30ppm CO2 24/7. Fine. Just a waste of CO2 during non light hours.
Couple of other issues I have been pondering on are:
- How will you know when to stop your boost diffuser (10 minutes ? 25 minutes ?) as, if it works, you will have a fairly limited time window, 5 minutes maybe, before you will start gassing your fish.
- CO2 is not very soluble in water and I suspect you will not be able to get enough CO2 to dissolve from a conventional diffuser into the water in order to raise the CO2 of 500litres in 30minutes as you hope for.
Sorry not convinced your idea gains anything helpful other than yet another way to kill your fish more easily.