--- product_id: 57003818 title: "STAX by 5 lb" brand: "two little fishies" price: "378.45 DT" currency: TND in_stock: true category: "Two Little Fishies" url: https://www.desertcart.tn/products/57003818-stax-by-5-lb store_origin: TN region: Tunisia --- # Marine & freshwater ready Flat, stackable limestone 100% natural & sustainable STAX by 5 lb **Brand:** two little fishies **Price:** 378.45 DT **Availability:** ✅ In Stock ## Summary > 🪨 Stack your style, sustainably splash your space! ## Quick Answers - **What is this?** STAX by 5 lb by two little fishies - **How much does it cost?** 378.45 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/57003818-stax-by-5-lb) ## Best For - two little fishies enthusiasts ## Why This Product - Trusted two little fishies brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Coral-Ready Base:** Ideal foundation for coral frags using STIX, AquaStik, or CorAffix adhesives. - • **Eco-Chic & Chemical-Free:** Sustainably sourced limestone with zero additives or pests. - • **Instant Aquarium Upgrade:** Ready-to-use rocks with no curing needed—start building your masterpiece now. - • **Effortless Layered Aquascapes:** Flat, dual-sided surfaces for secure, gravity-defying stacking. - • **Versatile Aquarium Compatibility:** Perfectly suited for both marine and freshwater environments. ## Overview Two Little Fishies STAX offers 5 lbs of flat, porous oolitic limestone rocks designed for creative, stable aquascaping in both marine and freshwater tanks. Sustainably collected and pest-free, these stackable stones provide a natural, chemical-free foundation perfect for building layered structures and supporting coral growth without any curing time. ## Description Build striking, unique aquascapes in your aquarium with Two Little Fishies STAX Aquascaping Rocks. STAX are flat, porous, oolitic limestone shapes, perfect for building layered aquascapes in marine or freshwater aquariums. Provides a stable structure and limitless creative fun! Each STAX rock is cut so that it has flat surfaces on both sides, allowing for easier and more secure stacking. STAX are made from 100% natural, sustainably collected limestone -- no chemicals or additives to worry about. These pest-free, reef-safe rocks are ready to go into your aquarium. Use with STIX cement to make open, gravity-defying structures, caves, ledges, and overhangs with lots of horizontal surfaces for attaching live corals. Used with AquaStik or CorAffix, STAX are also the perfect base for coral frags. . Most of the pieces range in size anywhere from 3" x 4" to 4" x 6". STAX rocks are ready to use, no curing necessary. Offering is for 5lbs of STAX. ## Features - Flat, porous oolitic limestone is great for building layered aquascapes - Perfect for marine or freshwater aquariums - 100% natural and sustainably collected ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B073DL2N2B | | ASIN | B073DL2N2B | | Additional Features | Stackable, porous limestone for creative aquascaping and eco-friendly material | | Age Range Description | All Life Stages | | Animal Food Diet Type | Veterinary Diet | | Best Sellers Rank | #93,001 in Pet Supplies ( See Top 100 in Pet Supplies ) #132 in Aquarium Décor Rocks | | Brand Name | Two Little Fishies | | Breed Recommendation | Small Breeds | | Container Type | Bag | | Customer Reviews | 4.4 4.4 out of 5 stars (316) | | Date First Available | June 27, 2017 | | Dog Breed Size | Small | | Flavor | Unflavored | | Is Discontinued By Manufacturer | No | | Item Form | Stick | | Item Weight | 2.27 Kilograms | | Item model number | STA5 | | Manufacturer | Two Little Fishies | | Manufacturer | Two Little Fishies | | Manufacturer Part Number | 43349-7880 | | Model Number | STA5 | | Number of Items | 1 | | Occasion | Birthday | | Product Benefits | Allows creative aquascaping and provides stable structures; eco-friendly. | | Product Dimensions | 2 x 6.2 x 2 inches; 5 Pounds | | Recommended Uses For Product | Aquascaping in marine or freshwater aquariums | | Special Ingredients | Limestone | | Specific Uses For Product | Aquarium Decoration, Aquascaping | | Target Species | Fish | | UPC | 748172401040 | | Unit Count | 80 Ounce | ## Product Details - **Age Range (Description):** All Life Stages - **Brand:** Two Little Fishies - **Flavor:** Unflavored - **Item Form:** Stick - **Specific Uses For Product:** Aquarium Decoration, Aquascaping ## Images ![STAX by 5 lb - Image 1](https://m.media-amazon.com/images/I/51ZW3CMPCxL.jpg) ## Questions & Answers **Q: What kind of sand will i need** A: I think you should google "how to choose aquarium substrate". I'm far from an expert but many factors go into choosing like: is your tank freshwater or saltwater, do your fish need to burrow, do your fish like to sift the substrate, are you going to keep plants in the tank. Once you set up a tank, the substrate will probably be the hardest thing to change. Good luck! **Q: How much & big is 5 lbs?** A: I’ve bought about 5-6 separate 5 pound boxes. Each box holds about 5-7 medium size rocks. 4-7 inches in size. Great rock to scape with easy to work with. **Q: Is this real limestone? Im hoping it will help raise the ph and harden the water in my aquarium** A: Yes, it's oolitic limestone, they just cut it to make the stax shapes. **Q: How many boxes are good for 12 gallons?** A: If there are no other rocks already in the tank, I would use 2-3 boxes. It is better to have extras than look barren. I supplemented my 55 gallon tank with just one box but I had four large rocks in already. ## Frequently Bought Together - Two Little Fishies STAX by 5 lb - Instant Ocean HoldFast Epoxy Stick, Fish Safe 4 oz - Oceans Wonders Coralline Purple Reef Safe Epoxy Putty --- ## 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.tn/products/57003818-stax-by-5-lb](https://www.desertcart.tn/products/57003818-stax-by-5-lb) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-15*