I put the 23W cool white bulb over my 5G again...
(the red plants turned red again within an hour. :))
I know people have seen oxygen bubbles rising from plants with CO2 supplementation, but I see a stream of bubbles coming up from my dwarf sag.
It's rising from the crown, and not from any other plants, not even the "oxygenators" like anacharis and vallis.
Is it even possible, or is it sewage gasses and I need to poke the substrate some more? It's so close to the plant I guess I'll have to rip it up to poke the soil under it and then plant it back. :/
I turned the lights off (the tank is in a sunny window) and in a few minutes, the bubbles stopped... When I turned it back on it took a few seconds to start back up again.
To me, that would prove that it's oxygen from photosynthesis...
Also, the fish are swimming through and around the tiny stream of bubbles.
They wouldn't do that if it was toxic gas would they?
Just wanted to make sure I'm not crazy...