CO₂ Tolerance - Shrimp and Snails

[Scaper26]

Has anyone here attempted to keep neocaradinia/Cardinia shrimp or ramshorn snails at CO₂ concentrations exceeding 50+ ppm? My experience has been that the semi-adult ramshorns tend to get really sluggish and eventually die; the younger ones are more active and live until they reach a critical mass. I've had better luck with bladder snails as a cleanup crew; they seem to have a much higher tolerance for CO₂.. I would like to add shrimp to this tank that hits upwards of 50 ppm every day and was wondering if it's a good idea.

 

[JayP]

I have both Neocaridina and Amanos that have thrived at over 40ppm CO2. Snails, other than bladder and assassin, have struggled to live long even at 30ppm. I do have a couple nerites that have beat the odds and are still going after many months, but that's out of dozens I've tried.

 

[Scaper26]

I have both Neocaridina and Amanos that have thrived at over 40ppm CO2. Snails, other than bladder and assassin, have struggled to live long even at 30ppm. I do have a couple nerites that have beat the odds and are still going after many months, but that's out of dozens I've tried.

Thanks for the info! So I should be ok introducing shrimp.
I have had nerites and ramshorns in a tank that hits 35ppm consistently (measured with Hanna kit). But the ramshorn population self-regulates, most young die and only a few eventually make it to adulthood, which again die when they get too big, about 1 cm.