:lol: You can dip 24 hours after your first dip,on the second dip you can let the coral in the solution a little longer than recomended.This way it will be less stressful on the coral rather than repeating the process a 3rd time more than likely if your coral does not seem any better after 2 treatments you may do more harm than good by repeating the dip over and over causing more stress and increasing the chance of it dying.Just my opionion,I hope this helps!!!