So, Noah took fish onto the ark to save them from drowning?
Exactly.
The Bible doesn't make sense.
Is the Noah's Ark story true? No, it's clearly not.
en.wikipedia.org
"Accordingly, Noah's instructions are given to him by God (Genesis 6:14–16): the ark is to be 300
cubits long, 50 cubits wide, and 30 cubits high (approximately 134×22×13 m or 440×72×43 ft). These dimensions are thought by some to be based on a numerological preoccupation with the number 60, the same number characterizing the vessel of the Babylonian flood hero."
The size of the ark wasn't based on a real ship, or whatever kind of box you want to call it. It was based on religion.
"Its three internal divisions reflect the three-part universe imagined by the ancient Israelites: heaven, the earth, and the underworld. Each deck is the same height as the Temple in Jerusalem, itself a microcosmic model of the universe, and each is three times the area of the court of the tabernacle, leading to the suggestion that the author saw both Ark and
tabernacle as serving for the preservation of human life. It has a door in the side, and a
tsohar, which may be either a roof or a
skylight. It is to be made of
gopher wood "
goper", a word which appears nowhere else in the Bible, but thought to be a loan word from the
Akkadian gupru – and divided into
qinnim, a word which always refers to birds' nests elsewhere in the Bible, leading some scholars to emend this to
qanim, reeds. The finished vessel is to be smeared with
koper, meaning
pitch or
bitumen; in Hebrew the two words are closely related,
kaparta ("smeared") ...
bakopper. Bitumen is the more likely option, as
"koper" is thought to be a loanword from the Akkadian "
kupru", meaning bitumen."
The Ark is symbolic. Nothing more.