Hello guest! Are you an Apistogramma enthusiast? If so we invite you to join our community and see what it has to offer. Our site is specifically designed for you and it's a great place for Apisto enthusiasts to meet online. Once you join you'll be able to post messages, upload pictures of your fish and tanks and have a great time with other Apisto enthusiasts. Sign up today!
I don't know of any experiments on this, but peat does absorb ions & compound from the water. Because of this I would try to medicate in a hospital tank that doesn't have peat filtered water.