[roostertech]

https://www.youtube.com/watch?v=c4FcmTI0tqY

I have a 5G shrimp tank on my desk at work. No fert, no co2. The only light it gets is from the window.

Every after noon when the sun is at an angle that the tank get direct light I would see bubble coming up from the guppy grass.

 

[AWolf]

https://www.youtube.com/watch?v=c4FcmTI0tqY

I have a 5G shrimp tank on my desk at work. No fert, no co2. The only light it gets is from the window.

Every after noon when the sun is at an angle that the tank get direct light I would see bubble coming up from the guppy grass.

Very Nice. Never heard of guppy grass.

 

[Pattern8]

It would have to be oxygen??? So yes