I had an Amano shrimp that turned dark green then brown then orange and looked weird, today it died. It has been like this for about two months. I am worried as I have other Amano shrimp that have started to change color to a darker or lighter brown. Is this normal? I did not change the water of the tank for two weeks and I have a bladder snail infestation in there. So I am wondering if the green hair algae in that tank is due to the snails and have something to do with this one Amano dying. I also have wood in there, and light green to brown plants. If it is due to the algae they eat off the wood and plants then okay.. but the orange Amano made me worried. I am planning on cleaning the tank of all bladder snails today as I see that no matter what I do the green hair algae does not away. So I think it is due to the snails as it appeared after the snail population exploded.