Six-Line Wrasse (Pseudocheilinus hexataenia)By Christopher / February 15, 2025 Size: 3 inches Tank Size: Minimum 30 gallons Temperament: Semi-aggressive Water Parameters: 75–82°F, pH 8.1–8.4 Diet: Carnivore (Brine shrimp, mysis shrimp, small invertebrates) Care Notes: Active swimmer; can be aggressive toward other wrasses.