Description: The T-series fish should feel threatened by the introduction of the O-series. Despite having a higher population than its counterpart, many consider the O850 Fish to be more destructible due to military training and top-notch weapons. Notes:How to catch O850 Fish: Catch O850 Fish by using a Level 66+ Planktonite in Sig's Wasteland. Requires the skill of Sub-Zero Survival Training. UNLOCKED SYMBIORCHER! Took 3 hours (11 guesses)