Thanks ... I'm from northern Ireland water here is always ph of 7.6 and high ph 8.2 !! Anyone trust wikipedia ??? This is war they have to say... The bumblebee gobies from the genus Brachygobius are perhaps the most widely traded freshwater species, being small, colorful, and easy to care for. They need tropical, hard and alkaline freshwater or slightly brackish conditions to do well. Gobies are generally peaceful towards their tankmates, though territorial among themselves. Since most are small and few are predatory toward other fishes, they usually make good community fishes. Typically, the main problem with gobies is feeding them: with a few exceptions, the small species kept in aquariums prefer live on frozen foods rather than flake, and they are not very good at competing with active species such as cichlids. One says yeah the other says nay .... I'm frustrated big time !!!