Biorb Bubble Tube Guard some fish like to try and squeeze themselves into the most unlikely places. Just in case one of your fish enjoys this behaviour we have made a top for the bubble tube; which prevents fish from getting in while still allowing bubbles to get out.
Swimming down the bubble tube will not harm most fish, however if the fish is too large they may get trapped. bottom
Tube Guard ensures that your fish are safe
Unique design prevents fish from getting in and lets bubbles out