One of my "midas" fought with another one today, I'll put him alone in a 100 gallons tank which i use for water change ! The problem is that this tank isn't cycled ... I have two fluval Fx5 filters for my 200 gallons so i'll use one for the 100 gallons and i'll fullfil the tank with 50% of new water and 50% of 200 gallons cycled water. Do you think it's dangerous for my fish to put him in this tank tomorrow ?? It's a urgency ...