name: graceful mudskipper (periophthalmus gracilis) max size: up to 4 inches water parameters: pH 7.0-8.5, temperature 75-86°F, brackish water with salinity around 1.005-1.015 specific gravity diet: carnivorous – thrives on live and frozen foods such as bloodworms, brine shrimp, mysis shrimp, and small insects temperament: semi-aggressive; territorial with its own kind, especially males, but can coexist with other brackish species in larger setups tank setup: requires a paludarium-style tank with both land and shallow water areas; provide mud, sand, or smooth rocks for climbing and basking; tight-fitting lid is essential since they can climb and jump compatibility: best in a species-only tank or with carefully chosen brackish fish like mollies and bumblebee gobies; avoid aggressive or much larger tank mates behavior: spends much of its time out of the water, using its pectoral fins to “walk” on land; often perches on rocks or mudflats to watch its surroundings fun fact: graceful mudskippers can breathe through their skin and the lining of their mouth and throat as long as they stay moist, allowing them to live comfortably both in and out of water
