Forktail Blenny (Meiacanthus atrodorsalis) thermometer Features: For freshwater & marine

Features: For freshwater & marine aquarium use Ideal for beneficial bacteria to colonize

Males have a bright red dorsal fin and lack any red stripes on their tail

The bacteria in One & Only are grown on a microstructure

These bacteria are compatible with biological filters and UV lights

Forktail Blenny (Meiacanthus atrodorsalis) thermometer Features: For freshwater & marineThe Forktail Blenny has a unique caudal fin with two long spines and five shorter middle spines. Its body sports a pale blue that fades to bluish yellow at the tail. Males are larger and have an array of color shifts while breeding. This fish needs a tank of at least 30 gallons and should live solo unless kept as a breeding pair. Handle with care: its venomous bite can be painful. Feed it crustacean flesh, mysis and enriched brine shrimp, and frozen