I Test Water For Fun Shirt – Aquarium Hobbyist Tee, Fish Keeper Gift, Aquarist Chemistry T-Shirt, Reef Tank Shirt
I test water for fun—because in this hobby, precision matters. Designed for aquarium enthusiasts who take pride in perfect parameters, this clean, witty tee blends subtle humor with a nod to the chemistry behind every thriving tank. Featuring a minimalist, lab-inspired design with pH, NH₃, NO₂, and NO₃ details, it quietly signals expertise to those who know. Made from soft, garment-dyed 100% ring-spun cotton, it delivers a broken-in feel from day one, while the heavyweight fabric and relaxed fit keep it durable and comfortable for long maintenance sessions, fish store runs, or everyday wear. Built with pre-shrunk material and reinforced stitching, it’s a perfect gift for aquarists, reef keepers, and anyone who knows testing water isn’t a chore—it’s part of the fun.
Garment-dyed fabric
The garment is dyed after it's been constructed, giving it a soft color and texture
100% Cotton
100% ring-spun US cotton for long-lasting comfort.
S to 4XL
Available in multiple sizes from S to 4XL (select partners) so your customers can find the perfect fit. Consult with our Comfort Colors 1717 size chart for all available sizes.
Double-needle stitching on all seams
The garment is sewn around the finished edges with double stitching, making it long-lasting
Without side seams
The Comfort Colors 1717 tee is knit in one piece using tubular knit, it reduces fabric waste and makes the garment more attractive
Country of origin
Made in Honduras
Machine wash: cold (max 30C or 90F); Do not bleach; Tumble dry: low heat; Iron, steam or dry: low heat; Do not dryclean.
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Any goods purchased can only be returned in accordance with the Terms and Conditions and Returns Policy.
We want to make sure that you are satisfied with your order and we are committed to making things right in case of any issues. We will provide a solution in cases of any defects if you contact us within 30 days of receiving your order.
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Built with creativity and a love for aquatic life.