Well, I've discovered an animal in my tank that has so far stumped me and my biology teacher (and her husband). I might be on to it... I think it might be a "spaghetti worm", but still does not match the description of one entirely.
It possesses the following characteristics;
-several long, stringy appendages alongside shorter, thicker ones
-orange coloured; stringy ones have thick black bands
-mostly sedentary, but appears to move short distances; this might have been an optical illusion
-grips and drags coarse gravel; has built a mound of them and continuously rearranges the pieces
-strings move entirely seperately from each other and are highly dextrous
-not light-sensitive; is active day and night
-so far has not been predated on by other inhabitants of the tank
-has grown rapidly in several months
The entire thing can stretch out to cover about the area of a quarter, and when I frist found it I tried to dig it up, thinking it was a coral trapped under the sand, but found no base or central body. It thrives under metal halide light and in high flow.
Any ideas?
