I did a 50% water change and added melafix because the fish that are alive look pretty rough. The water still tests <20ppm nitrate but im worried if this will lead to a bacteria crash? will the high temp spikes kill my bacteria? I put a drip line of cooler water going into the tank, but how fast is too fast to get the temp down? also I have never had a puffer die before, do I need to worry about his tetropoison killing the fish i have left? any advice and wisdom you guys can pass my way is greatly appreciated.
Im so bummed this is my favorite tank, I finaly got all my plants looking so leafy and green my little fishes were so happy on friday
*edit i forgot to add that my sticky thermometer reads up to 86, i didnt want to shock my little friends by cooling it too quickly so i made the temp of the water I added 82, even after doing the 50% change with lower temp water the thermometer is still reading maxed at 86. the cold water drip is really slow and comming from a 3 gallon bucket set inside a tub of icy water.