Category:Gas giants with life | Space Engine planetary Database Wiki

Gas giants with life
Gas giants are typically large gaseous worlds that have no solid surface and are not suitable for life. Majority of the time, gas giants' convection currents, storm bands, distance from star (typically far enough that above ground life can not exist), and the absence of any sort of primordial conditions prevent the existence of life in gas giants. That does not mean its all impossible, some gas giants could support life, though some conditions have to be achieved before that.
High enough concentrations of water in the clouds of the atmosphere
Close enough to a star to support above ground life
High enough amount of carbon, this is for carbon based life which is the most common possible type
Insane luck
These are not all the conditions needed, though these are some good examples of ones, unicellular life is way more plausible in a gas giant then multicellular life, though ML is not impossible. In SpaceEngine, these gas giants with life exist and are not too uncommon to come across. They tend to only have unicellular life. There would be 4 species with ML life, hunters and floaters, floaters use the gas giant's updrafts to float, and hunters eat Floaters as a food source, Sinkers, which reproduce themselves before falling into the depths of the gas giant, and Scavengers, which exist on the same layer as the Sinkers, at pyrolytic height, and they survive off based on the organic compounds generated by the decomposition (by heat) of other organisms. [1]