Hello all,
All of sudden, I found out that there are lots of this insect in my liverock and sand. They buried down the sand bed. They are about 2-3 inches long. They look scary. Below are some pics I tried to take a good shot.
My question now is: Is it really bad to have those? Do they harm the water quality?
Thanks for all your input.
le9569
All of sudden, I found out that there are lots of this insect in my liverock and sand. They buried down the sand bed. They are about 2-3 inches long. They look scary. Below are some pics I tried to take a good shot.
My question now is: Is it really bad to have those? Do they harm the water quality?
Thanks for all your input.
le9569