I am so excited to say I just saw one of the Thai Micro Crabs, probably the only one left in the tank. I was rearranging a small driftwood pile and there was one micro crab holding on below. I’ve only seen it twice in the past 8 months. I thought they were all gone and it would be safe for me to remove the heater in this mostly shrimp tank now, but I’ll keep the heater in for as long as the micro crab survives. I will say it looks a little larger than when I last saw it. So I’ve had this guy for about 15 months now. I have not done anything special to keep this crab alive. I have not fed it anything special, it survives on the light feeding I give this little 5.5g neocaridina tank. Wow, it made my day.