Hi need advice on my swordtail. i have 2 male swordtails and 5 females with various other fishes in a 100g tank. recently i have observed that a few of my swordtails seems to be resting motionless at the bottom of the tank. ususally in small crevices of rocks or between plants as seen in the picture. the other fishes however are behaving normally. Is this because they are pregnant? or depressed?