Successor to the X-Series: Modernized and ImprovedRED M — Liquid special tonic for promoting biological balanceRED M gently supports the natural balance in the aquarium and promotes a stable aquatic environment. Its special composition was developed to maintain a healthy habitat for fish, corals, and invertebrates without affecting them.Dosage10 ml per 100 liters daily for six days; followed by a five-day effective period.During the application period, do not perform partial water changes or use activated carbon, other adsorbers, ozone, or UV. Remove all deposits if possible.After the effective period has ended, i.e. at the earliest after 11 days, you may return to normal maintenance. We recommend following up the treatment with a course of Fauna Marin REBIOTIC to establish a healthy and efficient bacterial fauna in the aquarium.