Even my smaller axolotls (~6in) eat and pass bladder snails without issue. However bladder snails aren't the best for algae. Ramshorn and nerite are great for algae but have tougher larger shells that can cause impaction. Bristle nose Plecos are not a good option since the axolotl will grow much quicker and IF it tries to eat the pleco the pleco will get lodged in the axolotls throat. Plecos have been known to attach onto slow axolotls and suck of their slime coats. I recommend just scraping off the algae once a week and performing more water changes to remove excess nutrients


Sent from my iPhone using Tapatalk