--- product_id: 318420753 title: "16213 AquaSafe Plus Water Conditioner, 16.90-Ounce, 500-Ml (packaging may vary)" brand: "tetra" price: "$69.46" currency: USD in_stock: true category: "Tetra" url: https://www.desertcart.us/products/318420753-16213-aquasafe-plus-water-conditioner-16-90-ounce-500-ml store_origin: US region: United States of America --- # Instant tap water neutralization Boosts beneficial filter bacteria Protects fish gills & membranes 16213 AquaSafe Plus Water Conditioner, 16.90-Ounce, 500-Ml (packaging may vary) **Brand:** tetra **Price:** $69.46 **Availability:** ✅ In Stock ## Summary > 💦 Transform your tank into a thriving aquatic oasis instantly! ## Quick Answers - **What is this?** 16213 AquaSafe Plus Water Conditioner, 16.90-Ounce, 500-Ml (packaging may vary) by tetra - **How much does it cost?** $69.46 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/318420753-16213-aquasafe-plus-water-conditioner-16-90-ounce-500-ml) ## Best For - tetra enthusiasts ## Why This Product - Trusted tetra brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Universal Use:** Perfect for both freshwater and marine aquariums—one solution for all your fish care needs. - • **Easy Dosing Cap:** Convenient built-in measuring cap ensures precise treatment every time, no guesswork involved. - • **BioExtract Formula:** Supports natural bacterial growth to maintain crystal-clear, healthy water conditions. - • **Instantly Safe Water:** Neutralizes harmful chlorine & chloramines on contact for a stress-free aquarium setup. - • **Healing Slime Coating:** Promotes wound healing and protects fish from abrasions, keeping your aquatic friends thriving. ## Overview Tetra AquaSafe Plus is a 16.9-ounce water conditioner designed to instantly detoxify tap water for freshwater and marine aquariums. Its unique BioExtract formula promotes beneficial bacteria growth, reduces pollution, and protects fish with a healing slime coating and gill-safe colloids. Trusted since 1951, it’s the go-to solution for maintaining healthy, clear aquarium water with easy, precise dosing. ## Description Tetra AquaSafe® Plus works instantly to make tap water safe for fish in freshwater and marine aquariums. This BioExtract formula contains natural biopolymers to support the development of beneficial filter bacteria for healthy and clear water. These added ingredients help reduce aquarium pollution by strengthening the bacterial bed. Tetra AquaSafe Plus provides a slime coating to help wounds heal and protect fish from abrasions. Unique colloid ingredients protect your fish’s delicate gills and membranes. Use with freshwater or marine fish. Add 1 teaspoon (5 mL) for every 10 gallons of aquarium water. Top of bottle cap can be used for measuring – fill to inner ring-line to treat 10 gallons or use one full capful for 20 gallons. Make sure that replacement water is the same temperature as water in aquarium. Tetra AquaSafe Plus is not a medication and is not intended to be a substitute for any medication. Since 1951, Tetra has developed the world’s most comprehensive body of fish food knowledge, and fishkeeping enthusiasts have looked to the brand for products and solutions that add ease and beauty to their home. Whether you're an experienced hobbyist or just starting out, Tetra has everything you need–-from a large variety of quality fish food and innovative equipment to test kits and decor. ## Features - manufacturer: United Pet - Item Trademark: UNITED PET - Item Weight: grams, pounds, 1.10231131000, 500. - Item Category: Aquarium Pond Water Treatment ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0002563JA | | Allergen Information | Fish | | Best Sellers Rank | #48,923 in Pet Supplies ( See Top 100 in Pet Supplies ) #400 in Fish Medication & Health Supplies | | Brand Name | Tetra | | Customer Reviews | 4.8 4.8 out of 5 stars (14,588) | | Global Trade Identification Number | 00046798162131 | | Included Components | Tetra AquaSafe Plus 16.9 Ounces, aquarium Water Conditioner And Dechlorinator (16213) | | Item Form | Liquid | | Item Type Name | Water Treatment | | Item Weight | 500 Grams | | Liquid Volume | 5 Liters | | Manufacturer | Tetra | | Manufacturer Part Number | AQ-16213 | | Model Number | 16213 | | Pet Type | Fish | | Target Species | Fish | | UPC | 046798162131 | | Unit Count | 1 Count | ## Product Details - **Brand:** Tetra - **Item form:** Liquid - **Item weight:** 500 Grams - **Liquid volume:** 5 Liters - **Number of Packs:** 1 ## Images ![16213 AquaSafe Plus Water Conditioner, 16.90-Ounce, 500-Ml (packaging may vary) - Image 1](https://m.media-amazon.com/images/I/71NM5YQe7BL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Is the product supposed to have a seal?** A: This product never had a seal. Even if you buy it from a store or here. Tetra just never did a seal for this product! **Q: Does this remove ammonia? I just put in safe start.** A: Not directly... Safe Start introduces Nitrifying bacteria into your tank environment... Turn off uv sterilization when adding. The bacteria convert ammonia to nitrite and other bacteria convert nitrite to nitrate. All are toxic to fish to some degree... Ammonia being the worst and becomes deadly at about 8 parts per million (it burns the gill membranes)... nitrite at about 40-80 ppm and nitrate at about 160ppm... Water changes remove the nitrate... Seachem Prime is excellent for detoxifying all three and for removing heavy metals from your tap water in addition to dechlorinating... But SeaChem Prime does not remove it either... It binds the toxic molecules thereby making the water "safe" for fish and giving the bacteria colonies a longer amount of time to break down the toxins....Overcrowding your tanks is the major source of excess ammonia... **Q: Does this expire?** A: Yes, chemicals do expire and each one has an expiration date stamped on the bottom of the bottle. Shelf life is three years. **Q: does aquasafe plus conditioner clear new tank with added fijji pink sand cloudiness? If not what does?** A: You want an anti-flocculant such as Tetra Water Clarifier or SeaChem Clarify. It makes all the little pieces stick together making them bigger pieces and easier for your filter to catch It'll look worse before it gets better but will clear faster than just waiting. Like anything added to a tank, measure the dose and don't free pour ## Frequently Bought Together - Tetra AquaSafe Plus 16.9 Ounces, aquarium Water Conditioner And Dechlorinator - Tetra 77140 EasyBalance PLUS Water Conditioner, 16.9-Ounce - API STRESS COAT Aquarium Water Conditioner 16-Ounce Bottle --- ## 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.us/products/318420753-16213-aquasafe-plus-water-conditioner-16-90-ounce-500-ml](https://www.desertcart.us/products/318420753-16213-aquasafe-plus-water-conditioner-16-90-ounce-500-ml) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-05*