{"product_id":"ct-sun-large-aquarium-tunnel-cave-9-5-inch-3d-printed-substrate-viewer-with-top-entrances","title":"CT SUN Large Aquarium Tunnel \u0026 Cave (9.5 Inch) – 3D Printed Substrate Viewer with Top Entrances","description":"\u003cdiv\u003e\n  \u003ch2\u003eOverview\u003c\/h2\u003e\n  \u003cp\u003eDiscover a new dimension to your aquarium with the CT SUN Large Aquarium Tunnel \u0026amp; Cave. Measuring 9.5 inches long, this spacious hideout sits flush against the glass to create a dramatic cross‑section view of your tank’s underwater world. The bone‑white, sedimentary texture mimics natural rock while a smooth finish keeps edges gentle for delicate residents. This setup invites curiosity from small fish, shrimp, and fry, offering a secure refuge that remains out of the way of larger tankmates.\u003c\/p\u003e\n  \u003cp\u003eThe upgraded side‑flow design adds a practical twist: a partial cutaway on the left pillar creates a flow‑through channel that can help improve water movement and reduce dead zones. Paired with two generously sized top entrances (up to 2.7 inches in diameter), tiny inhabitants can explore and retreat with ease, enhancing both behavior and scenery without overcrowding the main swimming area.\u003c\/p\u003e\n  \u003ch3\u003eWhat’s included\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e3D printed tunnel piece + 3 mini accessories: artificial purple\/blue plant, yellow starfish, translucent blue turtle figurine.\u003c\/li\u003e\n    \u003cli\u003eA ready‑to‑visualize aquascape that blends with rock, gravel, and other décor while adding depth to the tank’s narrative.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003ch3\u003eTexture, safety, and compatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eRealistic sedimentary rock texture provides surface area for beneficial bacteria and a natural look.\u003c\/li\u003e\n    \u003cli\u003eAll edges are smoothed for the safety of small species such as Corydoras and delicate fry.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eWeighting roughly 170 g (about 6 oz), the tunnel is designed to sit securely with your substrate. Buried beneath gravel, sand, or clay pebbles, it stays in place without displacing water volume, creating a hidden “basement” that adds depth to your freshwater ecosystem.\u003c\/p\u003e\n  \u003ch3\u003ePractical use and aesthetics\u003c\/h3\u003e\n  \u003cp\u003eIn practice, this piece can contribute to a calmer microhabitat by offering a dedicated hideaway that’s visually compelling from multiple angles. While not a guarantee, many hobbyists enjoy the potential for a more engaging tank story, especially in communities with small shrimp, loaches, or dwarf fish that appreciate a secure retreat.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What are the dimensions and materials of the CT SUN Large Aquarium Tunnel \u0026amp; Cave?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The tunnel measures 9.5 inches long and is made from aquarium-safe 3D-printed material with smooth edges.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this tunnel be used in a community tank with larger fish?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the top entrances are designed for small fish and shrimp and won’t interfere with larger tankmates.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"CT SUN","offers":[{"title":"Default Title","offer_id":57201957339513,"sku":"B0GHP4KMBF","price":34.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/8934\/1049\/files\/ct-sun-large-aquarium-tunnel-cave-9-5-inch.jpg?v=1777812194","url":"https:\/\/petlyvox.com\/products\/ct-sun-large-aquarium-tunnel-cave-9-5-inch-3d-printed-substrate-viewer-with-top-entrances","provider":"petlyvox","version":"1.0","type":"link"}