I was doing a water change on my 55 gallon which Is well established. And took my dog out. My.dog got off the leash which in turn took like 15 minutes to get. I come back in. All my fish are on bare gravel. I put about 45 gallons of water back in. And triple dosed prime. (SAfe up to five times dose ) And put a wavemaker in and started the filter up. The fish have bubbles on them. Not ich. Actuall bubbles. Don't think it's dropsy either. What do I do ???????