I am still adding to my 125 that currently only has 8 mutli's and about 1/3 of the tank sand covered in shells. They look to be close to breeding size. My son is getting into the hobby with me and wants to add a group of ghost shrimp (wants to add much more but I won't let it off set the balance long term). Can I add about 10-12 small ghost shrimp without causing problems? I don't think they could hurt the multi's. At worst won't the multi's use them as food? After I add a group of Opthalmotilapia ventralis Kipili and maybe later some Julidochromis transcriptus Gombi and a pair of Altolamprologus calvus white won't the shrimp be gobbled up? I love how he is taking interest with me in the hobby and really wants to add the shrimp. Love to hear your opinions.