In the last 3 days, I have lost 75% of my fish. I'm pretty sure I accidentally poisoned them as I've never seen that many fish die so quickly. The weird thing is the invertebrates are fine. I think I got corroborator cleaner over spray in the bucket I use to do my water changes with. I did a water change the day after I did a brake job and the following morning half of my fish were dead and more to follow in the following hours. I was using the spray in my garage with the door closed and my fish bucket was within 5 feet of where I was spraying. So, the question is, can I just do a mass water change or do you think the corroborator cleaner has leached into the rock, sand, silicon seams making my tank a death trap? I did a test and bought 3 damsels and within 24 hrs they all died. The unaffected fish are 2 green chromis, yellow goby and a gold headed goby. My cleaner shrimp, urchin, snails, and crabs seem ineffected. So is my tank doomed? Will the corroborator cleaner dissipate over time?