Now I do not know whether in Aqua Medic chemicals have thus not yet engaged me. But I think that everything that is produced in the industry in large quantities is loaded with chemicals. Of course I know of aquariums friends who use it that it should be good, and is used particularly for new installations, but that was more suitable for community aquariums with less sensitive fish, but I never heard that it is used for Paros, the better when it works. I know how difficult it is to create stable water values for Paros, I do it all the same for about 20 years. I think that it is working with water additives to get quickly to the water values to finally maintain Paros, the water parameters change in the degradation of additives too fast and are too unstable for beginners especially difficult it is better to be patient and by natural “additives” such as humic substances, leaves, or service similar to the water values stabilize.