Specialty Bags
Tropical Fish
Heavy-duty poly bags built to hold water and live fish safely through transport.
What makes a tropical fish bag different?
Tropical fish bags are designed to hold water and live fish or other aquatic species during transport. Unlike standard poly bags, they need to do this without leaking, tearing, or collapsing — so they are typically made from strong LDPE or LLDPE film and heat-sealed to create a watertight environment.
The material also has to be clear enough for visual inspection, with enough stretch and toughness to withstand temperature fluctuations, movement, and pressure.
Where it fits
Common applications
Retail aquarium and pet shops
Tropical and freshwater fish suppliers
Aquatic plant and coral shipping
Invertebrate and shrimp packaging
Fish farms and hatcheries
Hobbyist event and trade show transport
Features
Built to perform
- No leaks, even under movement
- Flexible film that doesn't crack or split
- Easy sealing — heat seal or fold & tape
- Clarity for inspection and labeling
- Strong bottom seals to support water weight
- Proper oxygen retention when needed
Custom options
Customize every spec
Custom sizes
Width, length, and gauge to your spec.
Seal type
Flat, gusseted, or double-bottom seal.
Top closure
Heat-sealable or taped top options.
Bottom strength
Extra-strong bottom seals for water weight.
Film clarity
Clear film or tinted options.
Printing
Printed warnings or branding, 1–9 colors.
Packing
Wicketed stacks, loose, or boxed.
Double bag
Double-bag configurations for added strength.
Related products
Other specialty bags in our catalog
Why Rutan
Why choose Rutan for your poly bag needs?
All of our tropical fish bags and other poly products are manufactured in our New Jersey facility with complete in-house quality control. You’re working directly with the team who designs, manufactures and ships your product — no outsourcing or reseller involved.
This gives you faster turnaround, tighter tolerances and responsive service throughout the order process.
Have a packaging challenge?
Tell us about your application and we’ll engineer a custom solution.
