I'm really sorry about you loosing the big JD
Have you used mature filter media to start the tank cycling? Because if you didn't then it could mean that it more than likely hasn't cycled over a period of 2 weeks. Daily water changes for a little while would probably be best to help your smaller Jack Dempsey.
Have you used mature filter media to start the tank cycling? Because if you didn't then it could mean that it more than likely hasn't cycled over a period of 2 weeks. Daily water changes for a little while would probably be best to help your smaller Jack Dempsey.