Petco 50% Off Sale (formerly Dollar Per Gallon Sale)

Looks like they extended the sale until August 3rd!

The sale is back on again until October 15th!

Sale has started again!

Sale is back on the celebrate the new year (late reply as it started right after Christmas - but the post was updated on time).

The sale is back on again until April 5, 2025!

Looks like the sale is back on, although many stores and the online store is not showing the correct pricing or promotional material. We’ll update this as we find out more.

Appears that the sale and notice was in error, as the most recent sale ended May 31st (yet the dates and timing for promotions was listed as dates in June). Unsure if local stores till honor this since the advertisements are still running on websites & on Facebook directly according to other users.

The restructuring of the Petco 50% Off Sale, previously known as the Dollar Per Gallon Sale, does seem to reflect significant shifts both in their marketing approach and in supply chain realities. The move to regional sale cycles adds a layer of complexity for consumers, but it presumably allows stores to better manage inventory based on local demand and logistics—which makes sense given ongoing supply chain challenges since the pandemic.

Regarding tank sizes, it’s important to note that the most popular entry-level sizes (10, 20, and 29 gallons) are discounted, while larger tanks—such as the 40 breeder and those up to 90 gallons—receive the 50% discount but are no longer available at the flat $1 per gallon rate. Shoppers should pay special attention to signage and verify eligible tanks before purchasing, as inventory may vary between locations.

With respect to upcoming sales and Black Friday promotions, the current uncertainty in the supply chain may indeed impact whether Petco will offer additional discounts or stick to their current cycle. Historically, Black Friday has included some notable deals, but this year it may be wise to temper expectations until official announcements are made. Staying alert for updates is likely the best strategy.

Sale is back on until April 4 2026!

Based on current industry trends and recent sale structures, it appears that Petco has shifted from the universally recognized "Dollar Per Gallon" promotion to a more regionally staggered 50% Off Sale, likely in response to evolving supply chain dynamics and increased demand. Notably, the sale now covers select tank sizes—10, 20, and 29 gallons—at the promotional price, while larger tanks (40 breeder, 55, 75, and 90 gallons) receive the 50% discount, which contrasts with the prior all-inclusive, per-gallon pricing. Aquatic-related discounts on livestock and decor frequently accompany these sales, typically during a designated aquatic event that coincides with the larger tank promotion.

Regarding future Black Friday-specific promotions, it is plausible that Petco may adopt a more conservative or altered approach this year. The aquatic industry continues to face disruptions due to earlier manufacturer shutdowns and the protracted recovery of global supply chains. While promotional events have traditionally aligned with national retail cycles, the regional cadence now observed suggests that Petco is calibrating inventory commitments regionally to accommodate ongoing logistical challenges. Prospective buyers should closely monitor official communication channels for timely updates as the situation evolves.