--- product_id: 258951011 title: "Ultum Nature Systems UNS Strata Aquarium Artificial Seiryu Stone Aquascape Decoration (Version 1)" brand: "ultum nature systems" price: "¥42429" currency: JPY in_stock: true reviews_count: 4 url: https://www.desertcart.jp/products/258951011-ultum-nature-systems-uns-strata-aquarium-artificial-seiryu-stone-aquascape store_origin: JP region: Japan --- # Perfectly sized 13 x 5.5 x 7.5 inches 100% aquarium safe & easy to clean Premium resin mold for ultra-realistic texture Ultum Nature Systems UNS Strata Aquarium Artificial Seiryu Stone Aquascape Decoration (Version 1) **Brand:** ultum nature systems **Price:** ¥42429 **Availability:** ✅ In Stock ## Summary > 🪨 Elevate your aquarium with nature’s masterpiece—without the hassle! ## Quick Answers - **What is this?** Ultum Nature Systems UNS Strata Aquarium Artificial Seiryu Stone Aquascape Decoration (Version 1) by ultum nature systems - **How much does it cost?** ¥42429 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/258951011-ultum-nature-systems-uns-strata-aquarium-artificial-seiryu-stone-aquascape) ## Best For - ultum nature systems enthusiasts ## Why This Product - Trusted ultum nature systems brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Elegance:** Lightweight resin design makes setup and maintenance a breeze - • **True-to-Size Impact:** Ideal dimensions to create a stunning focal point in any tank - • **FOMO-Worthy Aquascapes:** Join the elite hobbyists elevating their tanks with premium decor - • **Aquarium-Safe Confidence:** 100% safe for fish and plants—no water chemistry changes - • **Nature-Inspired Artistry:** Hand-sculpted by pro aquascapers for authentic Seiryu stone vibes ## Overview Ultum Nature Systems UNS Strata Aquarium Artificial Seiryu Stone is a premium resin aquascape decoration, hand-sculpted by professional aquascapers to replicate natural stone textures. Measuring 13 x 5.5 x 7.5 inches and weighing just 2.9 pounds, it is 100% safe for aquatic life, easy to clean, and designed to maintain water chemistry. Perfect for millennial aquarium enthusiasts seeking a stylish, low-maintenance centerpiece that transforms any tank into a serene underwater landscape. ## Description Strata by Ultum Nature Systems features premium, resin molded stone aquascapes. Hand-sculpted by professional aquascapers, each piece offers detailed characteristics and qualities that are found on their natural counterparts. Meticulously crafted, Ultum Nature Systems Strata aquarium decor is 100% aquarium safe for livestock and plants, is easy to clean and will not discolor or alter water chemistry. With a curated selection and a what you see is what you get concept, creating a beautiful aquascape is simpler than ever. Dimensions L x W x H: 13 x 5.5 x 7.5 2.85 LB ## Features - Premium resin mold, 100% safe - Artist designed - 13" x 5.5" 7.5" ## Technical Specifications | Specification | Value | |---------------|-------| | Additional Features | Lightweight | | Asin | B08ND1RC21 | | Best Sellers Rank | #90,483 in Pet Supplies (See Top 100 in Pet Supplies) #941 in Aquarium Décor Thematic Ornaments | | Brand Name | Ultum Nature Systems | | Color | Green | | Customer Reviews | 3.6 3.6 out of 5 stars (10) 3.6 out of 5 stars | | Finish Types | Textured | | Included Components | Artificial Stone | | Item Depth | 5.5 inches | | Item Dimensions D X W X H | 5.5"D x 13"W x 7.5"H | | Item Weight | 2.9 pounds | | Manufacturer | Ultum Nature Systems | | Material Type | Resin | | Number Of Items | 1 | | Number Of Packs | 1 | | Occasion | Suitable for all occasions | | Product Care Instructions | Rinse underwater and place directly in the tank | | Recommended Uses For Product | Aquarium | | Seasons | All Seasons | | Size | 13 x 5.5 x 7.5 inches | | Style | Type 1 | | Theme | Nature And Outdoors | | Unit Count | 1 Count | | Upc | 810004572249 | ## Product Details - **Brand:** Ultum Nature Systems - **Color:** Green - **Material:** Resin - **Style:** Type 1 - **Theme:** Nature And Outdoors ## Images ![Ultum Nature Systems UNS Strata Aquarium Artificial Seiryu Stone Aquascape Decoration (Version 1) - Image 1](https://m.media-amazon.com/images/I/71oLWVQAHML.jpg) ![Ultum Nature Systems UNS Strata Aquarium Artificial Seiryu Stone Aquascape Decoration (Version 1) - Image 2](https://m.media-amazon.com/images/I/716Pw+N6owL.jpg) ![Ultum Nature Systems UNS Strata Aquarium Artificial Seiryu Stone Aquascape Decoration (Version 1) - Image 3](https://m.media-amazon.com/images/I/71oQM98ejTL.jpg) ![Ultum Nature Systems UNS Strata Aquarium Artificial Seiryu Stone Aquascape Decoration (Version 1) - Image 4](https://m.media-amazon.com/images/I/71P+Gons5IL.jpg) ![Ultum Nature Systems UNS Strata Aquarium Artificial Seiryu Stone Aquascape Decoration (Version 1) - Image 5](https://m.media-amazon.com/images/I/71rop2FNS1L.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Absolutely LOVE this rock *by on Reviewed in the United States March 13, 2026* Absolutely love this rock! I’ve seen comments about the white lines but they go away very quickly ### ⭐ Buyers Beware *by on Reviewed in the United States June 8, 2024* Horrible Qc, arrived with white lines all around product. ### ⭐⭐⭐ Read For Details *by on Reviewed in the United States June 14, 2022* Item is fine and I'm going to keep it. However, I'm frustrated that UNS charges so much for a simple mass produced rock mold. It's not "hand crafted" by any means. It's a lightweight, simple molded resin that probably costs pennies on the dollar to produce.The listed dimensions are not entirely accurate so here is what they actually are - 14.75" L x 6.2" H x 7.25" DAll in all, it's cool looking if you have the money to spend. Otherwise I'd recommend real rock where you could get at least 10-20lbs for the same price or less than a 2.5lbs mold. I got it for an ADA Paludarium which this rock is suited perfectly for.NOTE: The inside of this is hallow. If you are using it in an aquarium, make sure there are no openings at the bottom that would allow a creature to swim or crawl into the hallow underside or they could become trapped and die. ## Frequently Bought Together - Ultum Nature Systems UNS Strata Aquarium Artificial Stone Aquascape Decoration (Version 1) - FZONE Resin Seiryu Stone Model Ph-Neutral Aquarium Rocks for aquascaping, Micro-Landscapes --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/258951011-ultum-nature-systems-uns-strata-aquarium-artificial-seiryu-stone-aquascape](https://www.desertcart.jp/products/258951011-ultum-nature-systems-uns-strata-aquarium-artificial-seiryu-stone-aquascape) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-05*