おうごんちょうちょうぎょであれば
黄金蝶々魚であれば
ōgonchōchōgyodeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of こがねちょうちょううお

1. If it is a golden butterflyfish; When it is a golden butterflyfish

Ba Conditional
Usually Written in Kana