Description
Small fish, serious attitude
This pufferfish tank warning sign brings bold humor and personality to your aquarium setup with a design inspired by one of the most expressive marine fish. Known for their curious nature, dramatic reactions, and unmistakable “don’t mess with me” energy, pufferfish may be small but they absolutely run the tank—and this metal sign captures that perfectly. Ideal for reef tanks, fish rooms, aquarium stands, and saltwater setups, it adds a playful yet eye-catching statement that reflects your love for marine life while doubling as a fun “do not tap the glass” reminder. Crafted from durable aluminum and printed with high-quality inks, this sign offers a weather-resistant, fade-proof finish for long-lasting indoor or outdoor display. Each piece is made in our Henniker, New Hampshire studio, combining premium quality with a distinctive, humor-driven aquarium design.
Product Details
Pufferfish tank warning metal sign with humorous “highly trained” concept
Made from premium aluminum that is rustproof, UV-protected, and weather-resistant
Designed for reef tanks, aquariums, fish rooms, and marine setups
Distressed vintage WARNING style with bold, high-contrast design
Rectangular signs include pre-drilled holes for easy mounting
Square signs available without holes for flexible placement and display
Rectangular sizes: 9x12, 12x18, 16x24 inches
Square sizes: 6x6, 8x8, 12x12 inches
Printed directly onto metal (no vinyl or decals) for long-term durability
Smooth, high-quality finish with crisp, readable typography
Designed and printed in Henniker, New Hampshire, USA
Built for daily display with strong visual impact and lasting color
About the Species
Pufferfish are known for their ability to inflate their bodies as a defense mechanism
Many species contain tetrodotoxin, making them one of the most toxic fish in the world
They have strong, beak-like teeth used to crush shells and hard foods
Highly intelligent and interactive, often recognizing their owners
Curious and bold behavior makes them one of the most personality-driven aquarium fish
Common in both saltwater and freshwater environments depending on species
Production & Shipping
Made to order in our New Hampshire studio with careful attention to detail
Each sign is inspected to ensure consistent print quality and durability before shipping
Securely packaged in protective materials to prevent bending, scratching, or damage
Processing time typically 1–2 business days before shipment
Ships from Henniker, New Hampshire, USA with reliable and tracked carriers
Free US shipping on orders over $50
Tracking information provided with every order for full delivery visibility and peace of mind
Perfect For
Saltwater aquarium hobbyists, reef tank keepers, and marine life enthusiasts
Fish rooms, aquarium stands, reef setups, and aquatic workspaces
Funny gifts for pufferfish owners and ocean-themed decor lovers
Adding humor and personality to saltwater aquarium decor
Anyone who appreciates bold, playful, and expressive tank accessories
Complete Your Collection
Copyright © Designs by Linda Nee LLC, 2006–Present. All designs are protected. Unauthorized reproduction or resale is prohibited.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
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Products & Quality
Our metal signs are made from durable aluminum, designed to be lightweight, vibrant, and long-lasting.
Our art prints are available either on aluminum metal or on archival-quality art paper, depending on the product you choose.
Our greeting cards are professionally printed on premium Red River linen textured cardstock, giving them a beautiful, high-quality feel.
For other items such as gifts and accessories, we use carefully selected materials designed for both beauty and everyday durability. Product pages include specific details about each item.
Yes, our aluminum metal signs are durable and suitable for outdoor use, as aluminum is rust-resistant and made to handle different weather conditions.
Products like tumblers, compact mirrors, necklaces, and keychains are made from durable materials designed for everyday use.
However, art prints on archival paper and greeting cards are intended for indoor use to preserve their quality and appearance.
Our products are designed to be both beautiful and easy to care for.
Metal signs and metal art prints can be displayed indoors or outdoors and can be gently cleaned with a soft cloth if needed. Our metal signs (9×12, 12×18, 16×24, 3×12, 6×24, and 4×18) come with pre-drilled holes for easy hanging. Metal art prints include Command™ strips for simple, damage-free wall mounting.
Art prints on archival paper are best displayed indoors and ideally framed to help protect them over time.
Items such as tumblers, compact mirrors, necklaces, keychains, mousepads, coasters, and Christmas ornaments are designed for everyday use and can be gently cleaned with a soft cloth. For best results, we recommend hand washing tumblers rather than using a dishwasher to help preserve the design and finish.
Shipping & Returns
We typically process and ship orders within 1–2 business days. Once your order is shipped, delivery time depends on the shipping carrier and your location within the United States.
We ship Monday through Friday (business days only). During busy seasons such as holidays, processing and delivery times may take slightly longer due to higher shipping volumes.
If you need your order by a specific date, please contact us through our Contact Us page before placing your order so we can check available expedited shipping options.
Yes! We offer free shipping on all U.S. orders over $50, including Alaska and Hawaii.
For orders under $50, we offer a flat rate shipping of $5.95 anywhere in the United States.
Free and flat rate shipping do not apply to APO/FPO or international orders, where shipping rates are calculated at checkout.
We accept returns or exchanges within 30 days of delivery for non-personalized items.
Items must be unused and in their original packaging, and refunds are issued after we receive and inspect the return. Please note that return shipping costs are the customer’s responsibility, and original shipping fees are non-refundable.
Because many of our products are made just for you, custom or personalized items cannot be returned or exchanged unless they arrive damaged or defective.
Custom Orders & Personalization
Yes! Many of our products offer personalization options, such as adding a name, custom text, or special details depending on the item.
If a product can be personalized, you’ll see a personalization field on the product page where you can enter your custom details before adding the item to your cart.
If you would like custom text on a design that doesn’t offer personalization, or if you have your own design you’d like us to print, please contact us and we’ll do our best to help.
Yes! We’re happy to work with businesses, organizations, and events that need bulk orders.
If you’re interested in ordering multiple items, custom designs, or branded products, please contact us with the details of your request and we’ll be glad to discuss the options.
Still have questions?
If you didn’t find the answer you were looking for, feel free to reach out. We’re always happy to help with product details, customization requests, or order questions.
Contact us and we’ll get back to you as soon as possible.