Almost gassed my fish!
Came home from work today and heard the clicking of my electronic co2 regulator going way too fast. CO2 was really pumping in. I saw one angelfish with its mouth at he surface, found the other one face down by the bottom. Thought for sure he was dead, but I netted him and brought him towards the top. I lowered the water level so the spray bar was breaking the surface, did a partial water change. He started breathing and moving again! I still have the my spray bar above the surface for agitation ang stuck an airstone in.
I hope too much damage wasnt done and all my fish make it. The rams were gasping by the bottom so I netted them and brought them to the top for some air too.
Unfortunately, one fish is a goner, it swam up the water changer tube and got its head stuck and was dead by the time I could get it out.
All this after a power outage yesterday that had me worried my bio filter would die. Must have bumped the knob on the co2 regulator and didnt know because it is on a timer.