Puzzling about pearl and oxygen
1. What exactly is pearling (I know what it looks like, just not what is going on chemically) and how does it relate to oxygen levels in the water? Is it that they are giving off more oxygen than the water can absorb, and so we see the bubbles? If so, would this indicate highly oxygenated water while CO2 is being injected?
2. When using injected CO2 on a larger tank (120g) with high lights (26" tall) how hard is it to get proper oxygenation? Is a spray bar rippling the surface sufficient?
Tanks a bunch!
My current 120 tank journal:
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