The sun shone down into the water making it light and clear It was a world full of the strangest creatures some of them enormously big with great horrible mouths that could sallow all the eighteen hundred brothers and sisters but none of them thought about that either for none of them had ever been swallowed

Could you correct the punctuation please?
The sun shone down into the water, making it light and clear. It was a world full of the strangest creatures, some of them enormously big, with great, horrible mouths that could sallow all the eighteen hundred brothers and sisters, but none of them thought about that, either, for none of them had ever been swallowed.