cyano

ok, i will make this real quick because I can not believe what I am seeing in my tank right now. I have not seen my tiger pistol shrimp in months...literally I have not seen this shrimp since I added him to the tank months ago. Well over the last few days I have notices his burrow has gotten much larger over night than previously. Well I am not sure if there is any history to this but I have just watched the lawnmower blenny "stand watch" while the tiger pistol comes out of the burrow and pushes more sand around. The blenny does not go into the burrow and seems to scurry away every time I attempt to take a picture, but they do seem to be cooperating in a meaningful manner which is highly unusual from what I have read.