Leaf Fishname: leaf fish (monocirrhus polyacanthus) max size: up to 4 inches water parameters: pH 5. 5 6. 8, temperature 75 84F, 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