Oxygen levels

[aquanaut]

hello guys

Just a quick one. Will lower oxygen levels promote more or less algae/cyano? How do you know what o2 levels are at ? Fish are not at surface but ... Any way to tell? Coral do not like bubbles right?

PS I see alot of dif view on sand sifting satrfish to help clean botton...what do you guys reccomend buy or not to buy Tanks

 

[Phyl]

SSSF are a no-no because they typically starve in the home aquarium. Once they deplete the sand of nutrients it is all down hill. You probably won't see them at all until they are starting to go hungry and by then they will likely starve to death.

As far as oxygen levels I think you'd find your pH hard to maintain high enough if you were having an O2 problem, but other than that indicator, I'm not sure. You'd need a meter, I guess.

 

[RMPD109]

Algaes will add oxygen to your water. At least green algae will. Just like plants/trees, they will consume carbondioxide and produce oxygen.