I use the medical version of the above mentioned system. The key is the ceramic diffuser instead of air stones. The ceramic diffuser puts back pressure on the bottle and doesn't use near as much oxygen because the oxygen is being Forced through the ceramic diffuser for smaller bubbles which infuse the oxygen into the water better. An air stone pretty much lets the oxygen free flow through the stone and uses 3-4x the oxygen because the bubbles are much bigger and the water can't catch as much of the bigger oxygen bubbles before they dissipate out of the water.

In cold water, I don't use the oxygen as much. Cold water holds oxygen longer. Warm to hot water let's the oxygen escape faster because the water molecules are moving much faster and releases the oxygen.

Water temps have little to do with keeping fish or bait alive. The critical part is to keep plenty of oxygen in the water. Cooling down the water helps hold the oxygen more than it keeps the fish alive. We've all caught shallow fish in the summer when the surface temps were in the low to mid 90's. Those fish were plenty healthy when they were caught because the lake water hold lots of oxygen and doesn't get depleted.


BRM