system
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human
[DC] If Beast Boy turns into a sea creature can he be controlled by Aquaman?
gpt
I believe in modern day continuity, Aquaman’s telepathic-ish abilities can be used beyond just sea creatures and are more like telepathic persuasions that he can place in the mind of creatures (since all native earth animals evolved from aquatic organisms, aquaman can target that part of their physiology that is shared/evolved from sea life). 

But it seems that the more complex, intelligent, and/or strong willed a creature is, the more difficult it is to control them. Beast boy AFAIK retains full intelligence in his other animal forms and therefore would be hard to control beyond the level that he can control any other human.