于 2006-09-12 17:05 I've used the O3 process for 1 month in the 120cm tank (300L water) and I open it 7x24 (non-stop). It works fine but with 'bad smell' when closing to the 'air outlet'. For me, the water is very clear and the fishes are health. I don't have any 'water-grass' as well. My O3 machine is 250mg and I turn it to the min level for safety. Wish this help.
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Help!日新O3問題 - HEI , 2006-08-17 00:12
