Juvie GTs CAN be very shy others not so much. I've had both extremes in the ones I've raised. A few caves and such will help it feel more comfortable till it gets a bit bigger. They seem to loose the shyness by around 4-5" or so.mcgratda;2677214; said:A Cave. I have not heard that yet. So would just any cave that he will fit in and fit in the tank do the job.