I believe I have Uronema in the display tank, I been battling this for 7 years now tank is 600 gallons so I can't quartine my stock due to the sizes of them. So my problem is how to get rid of it in the display tank, I been using Formalin last month and it seemed to work for a while , but I open up a gate value that was closed for several months and ended up cloudy my tank then several days after that I notice it was back. So I don't know if it was still in the over flow box I had closed for a while. So her is my question hoping someone out there can give me an answer. I started formalin again for 10 days 1 ml to 10 gallons, can I also use hydrogen peroxide at the same time as using formalin. I understand I would need to dose twice a day at 12 hour intervals with the peroxide. Will it be safe to use both at same period? I know that it's not a parasite like ick because copper has no real effect on it.
Any advice would be appreciated this has been a nightmare!!!!!
Any advice would be appreciated this has been a nightmare!!!!!

