Bubbles, Yay Or Ney?

[blue_betta]

ive been told that its not possible to have bubbles in a marine tank, like from an air stone or the likes. is this true and why?

 

[xxBarneyxx]

It is possible but it depends on your livestock. Some marine livestock (particularly sponges and some corals) can get air trapped within their bodies which will damage and/or kill them eventually which is why its generally not recommended.

It has become a kinda of "urban myth" of marine keepers that using airstones in all marine systems are bad (the same as the idea of using normal filters, sponges and bio media is considered "bad" though there is no real reason behind that).

If you had fine enough bubbles you could end up with a "skimmer" effect (as this is essentially how skimmers work) but I doubt that is likely to happen.