Hi I have a problem. I bought a trio of swordfish one male two females. Females took to the tank right away. The male hid in the plants. I saw him swimming the first and second day. The third day found him dead. The tank has a pair of Rainbows, a few guppies and a Bristol nose place. it is a 10 gal tank. I am using it as a quarantine. The male was swimming perfectly at the store and the first day. This is a planted tank. It has been up for a year. Water change 3-4 gal every 7-10 days. Water parameters are very good no problems. I want to buy another male but I want to find out if anyone else has this problem.