The Researcher's Unisex Cut Crewneck Sweatshirt | White Logo
The Researcher’s Crew
There’s nothing quite like diving beneath the leaves of your next biotope aquarium project. The Researcher’s Crew, featuring our iconic white Betta Botanicals logo, is designed for long hours of creativity and inspiration. Whether you’re obsessing over habitat research, sketching biotope plans, or experimenting with new botanical layouts, this sweatshirt wraps you in warmth and style.
- Comfort Meets Durability: Made with a 50/50 blend of cotton and polyester for the perfect balance of softness and strength.
- All-Day Warmth: Air-jet spun yarn gives it a smooth feel that’s gentle on the skin.
- Classic Fit for Any Occasion: Pre-shrunk and designed with a 1x1 athletic rib-knit collar for a versatile, relaxed fit.
- Crafted to Endure: Double-needle stitching ensures this crew neck stands up to every project—and every adventure.
Whether you’re at your desk, at the local coffee shop, or standing by your aquarium adding the final touches, the Researcher’s Crew is your ideal partner for all things creative.
This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!
Size guide
| LENGTH (inches) | WIDTH (inches) | |
| S | 27 | 20 |
| M | 28 | 22 |
| L | 29 | 24 |
| XL | 30 | 26 |
| 2XL | 31 | 28 |
| 3XL | 32 | 30 |
| 4XL | 33 | 32 |
| 5XL | 34 | 34 |
| LENGTH (cm) | WIDTH (cm) | |
| S | 68.6 | 50.8 |
| M | 71.1 | 55.9 |
| L | 73.7 | 61 |
| XL | 76.2 | 66 |
| 2XL | 78.7 | 71.1 |
| 3XL | 81.3 | 76.2 |
| 4XL | 83.8 | 81.3 |
| 5XL | 86.4 | 86.4 |
The Researcher's Unisex Cut Crewneck Sweatshirt | White Logo
Home is getting a bit more natural
While the aesthetic appeal of botanicals and tinted water can be quite attractive to us, the recreation of nature to emulate water conditions, feeding patterns, spawning displays, and territory building are the true benefits botanicals provide to our critters.
Botanical FAQs
Compostable Packaging Promise
Our packaging is designed to return safely to the Earth, just like the botanicals inside. Every bag is BPA- and Phthalate-free, GMO-free, and contains no animal products. Each meets ASTM D6400 composting standards, ensuring it can fully break down in a home compost bin.
What are the Fluffy White Growths on my Botanicals?
That’s biofilm and fungi—what we call the “goo phase.” It’s one of the clearest signs that your aquarium is alive and functioning. These growths wax and wane naturally as botanicals decompose. They’re harmless, even beneficial, and will disappear on their own once microbial populations stabilize.
Will botanicals lower the pH of my water?
That depends entirely on your source water. In very soft or RODI water, botanicals can gradually lower pH as tannins and humic substances accumulate. In medium to hard tap water, buffering capacity often resists these shifts, and you may not notice much change. At Betta Botanicals HQ, our very hard water (350+ ppm) shows almost no pH change unless we use botanicals like Alder Cones or Macaranga Leaves.
When should I replace leaves or pods in my tank?
We recommend allowing botanicals to fully break down into detritus, since this fuels microbial life and enriches the substrate. You can remove them once they stop tinting the water, but you’ll lose some of their ecological benefits. Each time you add new botanicals, follow proper preparation and observe your livestock until you learn your aquarium’s rhythm.
Are your products just for bettas?
Nope. Our botanicals are safe for almost all aquariums, terrariums, vivariums, and paludariums. The only exceptions are goldfish and axolotls, which may ingest small pods like alder cones or casuarina cones. For those species, we recommend large leaves such as Indian Almond, Loquat, or Jackfruit.
What are Tannins?
Tannins are natural compounds released by leaves, seed pods, and bark as they decompose in water. They soften water, gently lower pH, and create the characteristic tea-stained tint found in blackwater habitats. But their role goes far beyond color—tannins fuel beneficial bacteria, fungi, and biofilms, which form the foundation of a healthy ecosystem. They also offer mild antifungal benefits and help reduce stress in fish by replicating the natural conditions they’ve evolved in. At their core, tannins are plant-derived antioxidants that connect your aquarium to the same processes at work in wild flooded forests and streams.