Undergravel filter?

Hello. I have a 33 gallon fish tank with a heater, power filter, and an undergravel filter. I have never had trouble with the undergravel filter until just recently. I have found that the tube that holds the air stone keeps popping out, just one side though. When I push it back in it pops back out shortly after. I tried turning down the air flow, but that doesn't help. I have already lost two fish from being caught in the tube. What can I do to stop it from popping out? Has any one else had this problem? TIA

Punkin eater2015-03-21T17:04:56Z

Not sure which is disconnecting, but yes most things can be fixed depending on what you're talking about.

Note: better suggestion, add another filter with a lot of biologic filtration like an emperor filter or 50 gallon rated aqua clear (maybe run filter on low flow setting). Then in a month or two throw away the undergravel. Key instruction here, don't shut off or over clean existing filter, don't get rid of under gravel too soon, don't worry about initial cloudiness, just do gravel vacuuming to get filth about 15-25 minutes after removing under gravel plates. Don't over clean filters or tank ever.

Anonymous2015-03-21T15:43:45Z

yes