I have a ten gal tank with one adult male, one adult female, and two juvenile females guppies. A month ago I put a chinese algae tank to help with the algae growth. It was fine for a week, then one morning found the CAE at the bottom of the tank half eaten. Next added a 2" apple snail, this was really helping until this morning all four of the guppies were attacking the meaty part of the snail that they could get to between the glass and its shell. Is there something I can do to prevent this because I would like to keep him in the tank. If not any suggestions for controlling the algae? I have the snail in a floating tank for now. I guess that the guppies aren't as peaceful as I thought. Any suggestions would be appreciated.