Fish Gasping At The Top? Do This BEFORE You Touch The Filter

Fish gasping at the top of the tank can mean low oxygen, but it can also mean ammonia, nitrite, heat, overfeeding, or a filter problem. In this video, I show the safe order to check when fish are breathing fast at the surface: add oxygen first, check temperature, test ammonia and nitrite, protect your filter bacteria, and look for what changed in the last 48 hours. Aquarium rescue help: https://dbcaquatics.com/ Use the Symptoms Checker and Rescue Hub if your fish are already showing warning signs: https://dbcaquatics.com/ If your tank keeps bouncing from one emergency to the next, the Aquarium Rescue Blueprint gives you the full rescue path: https://dbcaquatics.com/ If your fish are gasping right now, comment with: Tank size Temperature Ammonia Nitrite Nitrate What changed in the last 48 hours