▁and ▁on ▁one ▁occasion , ▁met ▁Super boy , ▁Earth ' s ▁only ▁other ▁public ly ▁active ▁super power ed ▁hero ▁at ▁the ▁time . ▁When ▁Arthur ▁grew ▁up , ▁he ▁called ▁himself ▁" A qu aman ". ▁ ▁It ▁was ▁later ▁revealed ▁that ▁after ▁Atl anna ' s ▁death , ▁Tom ▁Cur ry ▁met ▁and ▁married ▁an ▁ordinary ▁human ▁woman ▁and ▁had ▁a ▁son ▁named ▁Or m ▁Cur ry , ▁Aqu aman ' s ▁half - bro ther . ▁Or m ▁grew ▁up ▁as ▁a ▁trouble d ▁youth ▁in ▁the ▁shadow ▁of ▁his ▁brother , ▁who ▁constantly ▁ba iled ▁him ▁out ▁of ▁trouble ▁with ▁the ▁law . ▁He ▁grew ▁to ▁hate ▁Aqu aman ▁not ▁only ▁for ▁the ▁powers ▁that ▁he ▁could ▁never ▁possess ▁but ▁also ▁because ▁he ▁believed ▁that ▁their ▁father ▁would ▁always ▁favor ▁Aqu aman . ▁Or m ▁disappeared ▁after ▁becoming ▁an ▁am nes iac ▁and ▁would ▁res ur face ▁years ▁later ▁as ▁Aqu aman ' s ▁nem esis , ▁Ocean ▁Master . ▁ ▁Aqu aman ' s ▁ability ▁to ▁talk ▁with ▁fish ▁eventually ▁expanded ▁to ▁full - f led ged ▁tele path ic ▁communication ▁with ▁sea ▁cre atures ▁even ▁from ▁great ▁distances . ▁He ▁also ▁retro act ively ▁developed ▁a ▁specific ▁weak ness ▁a kin ▁to ▁Super man ' s ▁vulner ability ▁to ▁k rypt on ite ▁or ▁Green ▁Lan tern ' s ▁vulner ability ▁to ▁the ▁color ▁yellow : ▁Aqu aman ▁had ▁to ▁come ▁into ▁contact ▁with ▁water ▁at ▁least ▁once ▁per ▁hour , ▁or ▁he ▁would ▁die .