Graceful Mudskipper - Periophthalmus gracilis They are commonly found in mangrove brackish waterways. Capable of spending time outside of water! A true aquatic oddball. Current size is around 1.5" - 2". Also known as the Indonesian Mudskipper, awesome little fish with a unique ability to come out of the water and “skip” across the mud! They are able to breath air while they are skipping above the water and are such a treat in a small group. Beautiful body markings and cool looking fins this is one, amazing oddball! pH – 7.0-8.0 gH – 8-20 kH – 2-3 TDS – 100-300 (not too important in this case) Temperature – 25-26C or 77 – 78F