i have see many marine tankx have the airation so fine just like a mist and i love that so i wanna know if there is any way of doin to same in a cichlid tank as well if yes can anyone assist me with the sirection of doing the same
I think the bubbles in a marine tank are finer because of the difference in the water. Possibly its specific gravity... as in the water is more dense, the same reson it is easier for us to float in the ocean compared to freshwater lakes. We might have a "Reefer" here who can answer for sure though.
Not possible to get "marine-fine" bubbles without adding a heavy dose of seasalt in the mix. Hoosier Tank already explained why so. Smallest bubbles I've witnessed in freshwater came from a heavily cavitating pump (not suggested). Wooden bubbles might work - if keeping the pressure at minimum there'd only be one string of tiny bubbles. When adding air pressure more timy bubbles would appear but they will join each other pretty much instantly thus ending up as your everyday freshwater bubbles.
I love those small bubbles also. What I do to get them as close as possible to a salt water tank is an air line that goes to my powerhead. It pulls in air after the pump and shoots fine bubbles out. I have them in all my tanks, and I like them better than air stones.
I have a 600gph pump with a sponge filter on it, a hose running to a pvc manifold on the corner of the tank, I put an airline inside the sponge filter just to see what would happen. Those bubbles went everywhere.
Personally I don't like tiny bubbles in my tank, they look like particles floating around.