hi there i today purchased a male fighter, im a little nervous as i thought they were quite active mid to top dwellers, mine has spent quite alot of time swimming around the bottom of the tank and alot of hiding under rocks coming out now and then to the surface before heading down again, i tested the water earlier and read, nitrate 5.0, nitrite 0, ammonia between 0 and 0.25 (definately less than 0.25) and ph 7.6, is this behaviour expected of a male fighter or have i got something seriously wrong here