Nope, they just got alittle freaked out from the first water change I've done on this tank. I did a water test and seen the nitrate level was boarder line to unsafe so did a 40% water change and washed off the slate and the castle in my tank to kick it back down. They just got alittle spooked when I started adding water. I made sure the water I put back in it was the same temperature. They are OK now. Swimming fast to the front of the tank as soon as they see me as always. They are back to normal. Ha! Ha! They're too cute!