So its been a year since I've upgraded the Gigas home, and I haven't seen any new shell growth in that time. The mantle color is back to its former glory, and system CA and Alk consumption are back up to pre move levels. I even added a 250 watt MH between the Hydra 52's for added light. Any ideas? Please brain storm this with me. I am at a loss. How long does it take for a clam to grow after a stressful move?