Penn Plax 29-55 Gallon Aquarium Tank Divider 17 1/2" High x 11 3/8" Wide Part# TDSUBX
 
Tank-Divider designed to fits 29-55 gallon tanks
11 3/8” Height  x  9 5/8” Width
Instantly converts aquarium into two
Isolation for sick or injuried fish to prevent further bullying.
Provides split area for breeding / baby fish while giving more aggressive fish there own area.
Perforated screen allow for unrestricted water movement throughout the aquarium.