Study was aimed at removing hexavalent chromium from aqueous solution using a microorganism screened and isolated from a marine water sample. Chromium, a heavy metal which is toxic beyond a certain concentration, needs to be removed from polluted environmental samples. In this study, enrichment media was used to screen for the presence of bacteria that could survive in a chromium environment. They were plated, sub-cultured and streaked to obtain a pure culture. Two isolates were characterized primarily, by staining methods. They were used to for the removal of chromium [VI] from aqueous solution. One of the bacterial isolates showed to significantly decrease the chromium concentration by 61.1%. Hence there was an effective removal of chromium [VI] from the solution using the microorganism isolated from the marine water sample.