i just moved about 40 pounds of tonga out of a CAD 25 into a new 120 Oceanic tech. Obviously it began in the 25. The tank had 25 pounds og carib live sand and 10 pound sof rubble in the overflow box. I added some cheato and pods into the fuge once. Some lps, mated clowns, and a goby. I only stated that tank in june before deciding to trade up.
At first i noticed one about 1 inch long, thought it was a turbo withouts the shell. Same footprint, antennas. Then I noticed some tiny ones all over the old rock in the new tank.
Pretty cool. Obviously some spawning going on. They munch on the algae on both rock and glass.