kiwirach4

Hi. We have had this Hillstream Loach for a couple of weeks and she has developed these large bubbles on each side with growths or misshapen lumps/bubbles in front of those. Can anyone advise what we should do? We've googled and read about gas bubble disease, how do we know if these are gas or fluid-filled? We've tested the water and that seems fine. We have another Hillstream Loach and he's fine and 6 glowlight tetras who seem fine. We have an Aqua One EcoStyle 61 tank. Any help appreciated. Thanks.