Really sorry to hear about your daughters fish going off to fishy heaven! I had 2 chameleon shrimp in a community tank of tetras and neons... after they had tore my plants apart they started on the fish! The LFS said nothing about them being fin nippers let alone a risk to my fish... they ate everything that could get their claws on!

We rehomed ours into a tank on their own till they escaped and were never to be seen again.... word of warning tho.. trying to catch them isnt as easy as it may look.. the buggers jump out the net as fast as you get them in it!

Perhaps some red cherry shrimps for her? they dont grow any bigger than an inch... eat algae and not fish.. breed well and are happy little fellas

Hope this helps

Donna