name: leaf fish (monocirrhus polyacanthus) max size: up to 4 inches water parameters: pH 5.5-6.8, temperature 75-84°F, soft, acidic water diet: carnivorous – primarily feeds on live fish, shrimp, and insects; rarely accepts frozen foods and almost never dry food temperament: peaceful but highly predatory; should only be kept with fish too large to be eaten tank setup: heavily planted aquarium with driftwood, leaf litter, and subdued lighting; calm water flow and excellent water quality are essential compatibility: best kept in a species-only tank or with larger, peaceful fish that will not harass them behavior: slow-moving ambush predator that mimics a dead leaf; remains motionless for long periods before striking quickly at prey fun fact: the leaf fish’s body shape, coloration, and even its swaying movement in the water perfectly imitate a fallen leaf, making it one of the most convincing camouflage predators in the aquarium hobby