Well, I really have no idea how this happened, and I'll figure that out later once my fish are safe. But for now my fish are breathing extremely hard, and I'm assuming they can't get enough oxygen. So far I did a 40% water change, and I rigged up a 15 gal air pump to put in some extra O2. I ran out of dechlorinator in that last water change. Is there anything else I can do before the LFS opens in 5-6 hours to remedy the situation?