Wrasse
bright
Bright
marine
Minnow is a six letter word meaning small fish.
dim
supernova
Yes the word cod is a noun. It is a type of marine fish.
Plankton
The answer is conch.It's five letters, ending in H. A conch is a type of tropical marine gastropod which is edible. They usually have a bright, colourful spiral shell with a distinctive large outer lip.
fish
bright
The three-letter word for light that is not "bright" is "dim." It refers to a low level of illumination or brightness, often creating a subdued or muted effect.