Thanks, Paul! I did try bleaching it last time, I'm going to take them out and do a sniff test today. I made sure there was nothing inside them, and sure enough there wasn't. When I bleached it, I got tons of baby snails falling off of it
Too bad because I could have used the snails to feed my dwarf puffers.
But I imagine if little snails came out due to the bleach and washing, that anything dead would have, too. I even used a flashlight to check in all its nooks and crannies. For some reason, the orange one is the worse offender even though it has more openings cut out of it. The gray one actually cups water (it doesn't have holes to vent water at the bottom, like the orange one), but it doesn't smell nearly as bad. Still stinky, but not "smell it from the other room" stinky.
But I imagine if little snails came out due to the bleach and washing, that anything dead would have, too. I even used a flashlight to check in all its nooks and crannies. For some reason, the orange one is the worse offender even though it has more openings cut out of it. The gray one actually cups water (it doesn't have holes to vent water at the bottom, like the orange one), but it doesn't smell nearly as bad. Still stinky, but not "smell it from the other room" stinky.