Antipofish said:
krazypara3165 said:
That might be worthwhile, Is that co2, or o2 that you run 24/7? and I originally started of with a second hand 4ft that split before I got to put fish in, had to buy a new tank and a new light system as the old light system (brand new, now sat doing nothing) no longer fitted, and then decided I wanted to go high tec. To top it off im now going.down the discus road......... I can only see me spending more in the future haha
My CO2 comes on 3 hours before lights on. And stays on until an hour before lights out. The O2 is on 24/7. Not only does it increase the available O2 and allow me to increase the CO2 levels, but its constantly breaking the surface so I never get any surface scum (which itself locks the CO2 in and can cause further problems for the fish as well as looking manky). So you win all round
I do similar and it feels good to supersaturate with O2, the fish seem so energetic, etc. One thing I note that's slightly different is that I cannot add more CO2 without the fish displaying signs of hypoxia (gasping at the surface), even if I supersaturate O2. I've learnt that to complete respiration fish must
diffuse CO2 from their gills and the rate of diffusion is strictly dependent on the CO2 concentration in the water (diffuses quicker the greater the difference in CO2 concentration between bloodstream and water going over the gills). So fish have loads of O2 available to respire, but the removal of CO2 from blood is independent and poses a separate concern.