I just accidentally used Melafix instead of Stress Coat on my white betta. It was an overdosed amount as I was going by Stress Coat amount. I noticed my betta kind of flinched when I poured it into his tank. After about 5 minutes, I realized what I did. I immediately scooped him into a bucket of dechlorinated tap water and drained the tank 3 times. He seems ok but any other suggestions?