Hello,
I was wondering if betta fish can live in tanks that do not have holes in the top for oxygen? I have a large tank but the lid does not have holes in it, and I read somewhere on here that the fish come up to the service to breathe.... so does this mean there needs to be oxygen inbetween the water and the lid? How much air is too little... Sorry I know this is probably a dumb question but I just got my betta yesterday and for now I have been leaving the lid off just in case, but I'm afraid he might jump out. Any help would be much appreciated. Thanks in advance