After having great success with a 29 gallon fresh water tank I added a 75 gallon in early December. Everything went well with the cycle and since have added 3 Giant Danios and 2 Blood Parrot with great success. All going well until today, “ICK”!!!! The smallest parrot has ick. Now I really need help – I don’t want to use chemicals or salt.. My intention was to transfer a weather loach and catfish from my 29 gallon, so I don’t want to cause future problems for the transfer of scaleless fish. The tank is also planted with Java Ferns and another water plant that are doing very well. Have heard chemicals can kill these plants. What is the best possible treatment?