I am a newbie. I've had my tank set up since November. My tank is 95 gallons. I have had 5 skunk cleaners, 6 peppermints, 1 pistol, 1 fire, and 1 saron shrimp for months without problems. The skunks and peppermints produce eggs constantly now that they've gotten big. My LFS also keeps skunks and peppermints together, but I notice that they keep the copper banded shrimp separated.