Answer:

platy

Answer	Crossword Clue
PLATY	Prefix with -pus
PLATY	Aquarium fish.
PLATY	Like layered soil.

PLATY	Flat: Prefix
PLATY	Tropical aquarium fish
PLATY	Consisting of flaky layers

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.