Bring good vibes and relaxation to your koi companions with Dr. Tim’s Aquatic Koi First Defense Aquarium Cleaner. This cleaner is designed to reduce stress levels and help your fishy friends adapt to new environments. It contains a mixture of vitamins and immuno-stimulants to support your pals’ immune systems and promote healing from infections or injuries. It also helps buffer the water to maintain a healthy pH level as well as working to eliminate heavy metals and other toxic chemicals. You can use this cleaner any time you change your finned friends’ water or environment for an extra boost of calming care!