Originally Posted by CrowntailxKing
Yeah, it's supposed to be higher than the water-level because they don't want water accidentally siphoning back through where the air is supposed to go and cause an electric shock or something of the sort. Just a safety measure, so it doesn't hurt. Glad it's working out for ya! Did you put a wash cloth under it to muffle the noise a bit?
The check valve keeps this from happening. I am bad and don't keep mine high above the filter. I should probably get a check valve too.
Mine does do the bubble thing for some reason. I don't know why. I also recommend the fluval intake foam cover Thunderloon mentioned I have them on all tanks I own. You can get a really cheap 3 pack on Amazon. I think it is like $5 for 3 which is way cheaper than in the stores.