On 17th February 2017, a 3 member team from the Brunei Biotope Group including myself set off on a journey into the jungles of Labi (located in South East of Belait District in Brunei Darussalam) in search of a tall waterfall known to locals as Wasai Belulok situated along the Belulok River (4°16’32.57″N, 114°25’29.45″E). The journey into the jungle started at approximately 12 noon, until 4pm. At the Belulok waterfall, within a 50 metre span of the stream, various species of fish and one species of aquatic plants can be found. Starting from the pool beneath the waterfall, only one …