The Collaborative International Dictionary of English v.0.48:

Aquarial \A*qua"ri*al\, Aquarian \A*qua"ri*an\, a.
   Of or pertaining to an aquarium.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Aquarian \A*qua"ri*an\, n. [L. (assumed) Aquarianus, fr. aqua:
   cf. F. Aquarien. See Aqua.] (Eccl. Hist.)
   One of a sect of Christian in the primitive church who used
   water instead of wine in the Lord's Supper.
   [1913 Webster]