Petco cuts an extra $50 off orders of $150 or more with coupon code SAVE50. Plus, all qualifying orders bag free shipping. Some exclusions apply. Deal ends October 16.

Buy Now

A couple of best bets, after discount:
-- Mr. Herzher's Pet Residence from $107.24 (pictured, low by at least $31)
-- SeaClear Rectangular 40 Gallon Junior Executive Aquarium Kit for $246.87 ($128 off)