The first two-stage coral immersion bath in history! devoid of oxidants and iodine. Penetrating substances found in C-Dip will impact pest egg strands. A professional coral dip that works wonders against bacterial infections and parasites is C-Dip 1. devoid of oxidants and iodine. Penetrating substances found in C-Dip will impact pest egg strands. How to apply: For every liter, add 12 drops. After thoroughly mixing, put the corals in the coral dip and give them a few gentle shakes. To keep the water flowing, you can use a tiny powerhead. Transfer the corals to the C-Dip 2 coral dip after five minutes (be sure to have it ready before beginning with C-Dip 1). Avoid reusing the prepared coral dip because it contains parasites.