Psalm 105:29
He turned their waters into blood, and killed their fish.
Exodus 7:20-21
Moses and Aaron did so, as Yahweh commanded; and he lifted up the rod, and struck the waters that were in the river, in the sight of Pharaoh, and in the sight of his servants; and all the waters that were in the river were turned to blood.
Psalm 78:44
he turned their rivers into blood, and their streams, so that they could not drink.
Isaiah 50:2
Why, when I came, was there no man? when I called, was there none to answer? Is my hand shortened at all, that it can't redeem? or have I no power to deliver? Behold, at my rebuke I dry up the sea, I make the rivers a wilderness: their fish stink, because there is no water, and die for thirst.
Ezekiel 29:4-5
I will put hooks in your jaws, and I will make the fish of your rivers stick to your scales; and I will bring you up out of the midst of your rivers, with all the fish of your rivers which stick to your scales.
Revelation 16:3
The second angel poured out his bowl into the sea, and it became blood as of a dead man. Every living thing in the sea died.