If your nitrite snail has been in the same exact place for 2 weeks, it is probably dead. :(
But if you are not sure, you can do the death test I thought up.
1) wait until late evening since snails "sleep" during the day
2) Try to pick him up. If there is some resistance, he is actively sucking on the heater to stay in place and is alive. The test ends here.
3) If it was easy to pick up the snail off the heater, then he is probably dead. Flip him over and look at his pad. If it is moving he is alive and the death test ends here.
4) If he is not moving, place him pad down on an algae waffer and wait. If he eats the waffer, he's alive. If he doesn't eat the waffer, he is probably dead. But give it a minute. It took Shelldon about 30 minutes to pass the 4th test.
Unfortunately, if you need all 4 steps of the death test, your snail is probably dying. Shelldon passed away a week after I thought he was dead. I'm glad I didn't lay him to rest a week early, but it still sucks that he was probably sick for a while and I didn't notice. :(
Oh, I just remember to mention that the other two nitrile snails I have are doing well and even grew a bit since I brought them. I'm not sure why Shelldon passed suddenly while the other two are healthy and thriving. : /
Last edited by SnowySurface; 06-19-2013 at 09:13 AM.