Hint for the marine part:
Where might there be easy to observe marine life, high plant/macro algae density, fish, inverts etc is a temporarily closed system 2X a day?
Haha, Easy enough.:hitting:
pH goes from about 8 to 10 or a tad over that sometimes.
Well, at/on most intensive areas but not all.
Must check it out during night fishing.
Hopefully I dont have to jump into water at night,even shallow. :nono: :grinyes:
Shallow FW ponds with thick weed growth, low alkalinity will easily move 2 or more units of pH.
That much I knew but so many variables influencing outcome as in nature.
No two lakes are alike, etc.[/QUOTE]