Thanks a lot buddies! Do you know where I could find an info about the behavior of this fish?! It's amazing! Just few hours after addition it Mr "Grisom" started building a tunnel! It swims around the tank and collects different small pieces of my crushed coral sand, small grains are used for the floor of the cave, and the large ones are put around the entrance and on the surrounding LR! Fascinating! Are your gobies doing the same - use different sizes of crushed coral/aragonite ?!
