well i have a ally snappet about hand size, i noticed his shell was geting alot of alge on it and it he was flacking off pices and the stuff under it seemed to have a while fiml under it, kinda like it wastnt rdy to be exposed. anyway someone sugested to get a tooth brush and scrub and clean his shell alittle and the aply some vita shell to his shell. so i while i was useing the tooth brush another chuck of the shell came of, itw as soft on the top layer but hard under nieth. the spots where part of the old shell fell of still havt seem to harden fully and started to bleed alittle when u clean the shell with tuth brush so i know i have a problem, i know his shell should be pretty solid and should bleed from alittle scrub of a tooth brush, so i stoped and coated the shell full of the vita shell stuff and put him back in. if anyone has any advice on how to fix and whats wrong pleace let me know. i was told that ally snapper dont need a basking lamp bc they live under water all the time and under substate, so i never provided him one. for a light he has a normal aquarium plant light. so would a basking light help his shell. thanks in advace for any info