--- product_id: 186573235 title: "FritzZyme Turbo Start 900 Saltwater (4 oz)" brand: "fritz aquatics" price: "199.87 DT" currency: TND in_stock: true reviews_count: 8 category: "Fritz Aquatics" url: https://www.desertcart.tn/products/186573235-fritzzyme-turbo-start-900-saltwater-4-oz store_origin: TN region: Tunisia --- # FritzZyme Turbo Start 900 Saltwater (4 oz) **Brand:** fritz aquatics **Price:** 199.87 DT **Availability:** ✅ In Stock ## Quick Answers - **What is this?** FritzZyme Turbo Start 900 Saltwater (4 oz) by fritz aquatics - **How much does it cost?** 199.87 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/186573235-fritzzyme-turbo-start-900-saltwater-4-oz) ## Best For - fritz aquatics enthusiasts ## Why This Product - Trusted fritz aquatics brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Instructions Shake bottle, add 1 oz. (30 ml) Turbo Start per 25 gallons (95 L) of water. Add animals after acclimation. Do not overfill tank. Do not overfeed. Test water parameters regularly. To decrease cycle time, FritzZyme TurboStart900 may be safely used up to 5 times the recommended dosage. Review: Trusted product. Cycles quickly and effectively - Definitely helped cycle my tank quickly and efficiently. Been using Fritz to cycle my aquariums since the 80’s. Trusted product for a good value. Review: Excellent product for cycling a saltwater tank - My bare bottom saltwater tank cycle stalled with high nitrites for >5-6 weeks (I attempted to cycle vis dosing a mix of ammonia and fish food; no fish were present). I initially inoculated the tank with Dr. Tim’s, tried multiple water changes, kept phosphate levels elevated, added Seachem Stability; all without success. Within 2 days of using this product, the nitrites dropped by 2PPM. Very impressed with how quickly it worked. The product shipped with a cold pack, though was arrived at ambient temp due to a shipping delay. However, this didn’t seem to have an impact on the effect. There was a slight sulfur odor but this dissipated rather quickly. I also greatly exceeded the recommended dosing (I dumped in 4oz for a 5 gallon tank) with great results. I highly recommend using this product for cycling dry rock saltwater tank. Just spend the extra money upfront instead of wasting time and money on other products. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B084GPBL98 | | Best Sellers Rank | #32,938 in Pet Supplies ( See Top 100 in Pet Supplies ) #293 in Aquarium Water Treatments | | Brand | Fritz Aquatics | | Brand Name | Fritz Aquatics | | Customer Reviews | 4.6 out of 5 stars 503 Reviews | | Item Form | Liquid | | Item Weight | 4 ounces | | Liquid Volume | 29 ml | | Manufacturer | Fritz Aquatics | | Manufacturer Part Number | 080531806142 | | Model Number | 080531806142 | | Pet Type | Fish | | Target Species | Fish | | UPC | 080531806142 | | Unit Count | 4 Fluid Ounces | ## Product Details - **Brand:** Fritz Aquatics - **Item Form:** Liquid - **Item Weight:** 4 ounces - **Liquid Volume:** 29 ml - **Unit Count:** 4 Fluid Ounces ## Images ![FritzZyme Turbo Start 900 Saltwater (4 oz) - Image 1](https://m.media-amazon.com/images/I/51Y9pmBwiQL.jpg) ![FritzZyme Turbo Start 900 Saltwater (4 oz) - Image 2](https://m.media-amazon.com/images/I/41G-D0etILL.jpg) ![FritzZyme Turbo Start 900 Saltwater (4 oz) - Image 3](https://m.media-amazon.com/images/I/51cJ9cTcAsL.jpg) ## Questions & Answers **Q: Doesn’t this need to be cold ? If so why does it take so long to get here?** A: No, it doesn't need to be cold 24/7 every second. While it's best kept that way when stored, they aren't so fragile, it doesn't need to be shipped like a vaccine or anything; they don't die. In fact, the best temperature for them when they are cultured are in the 90s; your tank is probably 80+. It should be kept cold however to slow their metabolism down so they don't starve - the heat isn't going to kill them unless very very hot (110F+), but they can't reproduce in the bottle. There's no oxygen, so oxidizing ammonia can't happen. They can only live so long without a nitrogen source. So keeping it cold keeps this concentrated bacterial culture more potent over time for that reason. The normal assumption is that they are killed by heat, but that doesn't usually happen, it requires very high temperatures to be bactericidal. When not in transit, it should absolutely be kept in the refrigerator. Freezing will kill them, and the warmer it gets over a long timeframe (weeks, months) the less potent it will be. They do understand this when it's manufacturered. A new bottle will be more potent (have more bacteria) than one 4 months later near the 'Best By' date, or stored at 40F vs 75F during that time. So the rating is very conservative. They grow exponentially when put back into a tank, so it will recover. Best way we recommend is to utilize as much as possible, all at once, and it will compensate for any potential shipping loss. Overdosing it 5X works great, and that's what we suggest here for best results. Every bottle and tank setup is unique, however, so results still do vary for each situation and aquarium. **Q: I accidentally bought this saltwater version instead of the freshwater one. Would this still be ok to use or should I go get the correct one?** A: Sadly it won't work. The nitrifying bacteria are different between the two. **Q: my ammonia is 1.0 after a week. 2 clowns,1 sailfin molly, 3 hermit crabs, 2 nasarius snails. do i need to add more fritz?** A: What size tank? How much Turbo did you add? alot of questions needed answered to be able to help you on that. If its a 25-30 Gallon with those in the tank and you added a 1oz bottle, you can safely dose again with another 1oz bottle. Fritz is great and wont harm your Fish, Crabs or Snails. You can safely add it up to 5x recommended. If you want the ammonia to go down, also consider feeding less, go down to every other day or every 2 days, clowns and the Molly might be a bit hungry but wont hurt them. Also check for other reasons on the spike. Anything Dead? any Left over food after feeding? do you have a Sand/Coral bed that you havent bothered cleaning? Lot of reasons ammonia will rise so no one can completely help you on this. But first thing I would do is limit your feeding as it is only contributing to the Ammonia raise. **Q: How much do I use in a 75 gallon saltwater tank ?** A: Depends on whether or not you already have fish. My tank was new and was empty, so I used the entire bottle. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Trusted product. Cycles quickly and effectively *by S***N on June 9, 2026* Definitely helped cycle my tank quickly and efficiently. Been using Fritz to cycle my aquariums since the 80’s. Trusted product for a good value. ### ⭐⭐⭐⭐⭐ Excellent product for cycling a saltwater tank *by A***R on March 25, 2024* My bare bottom saltwater tank cycle stalled with high nitrites for >5-6 weeks (I attempted to cycle vis dosing a mix of ammonia and fish food; no fish were present). I initially inoculated the tank with Dr. Tim’s, tried multiple water changes, kept phosphate levels elevated, added Seachem Stability; all without success. Within 2 days of using this product, the nitrites dropped by 2PPM. Very impressed with how quickly it worked. The product shipped with a cold pack, though was arrived at ambient temp due to a shipping delay. However, this didn’t seem to have an impact on the effect. There was a slight sulfur odor but this dissipated rather quickly. I also greatly exceeded the recommended dosing (I dumped in 4oz for a 5 gallon tank) with great results. I highly recommend using this product for cycling dry rock saltwater tank. Just spend the extra money upfront instead of wasting time and money on other products. ### ⭐⭐⭐⭐⭐ Cycle was stuck for 17 days. Within 36 hours, GREAT results! *by P***R on March 24, 2026* The photos show what my water readings were before, and then 36 hours after I added just one standard dose of the FritzZyme Turbo Start 900. My cycle was stuck/stalled— there were no changes in my readings, even after I waited/tested for 17 days (after I initially began the cycle). However, adding this product caused the cycle to move forward. Also, no negatives like water cloudiness occurred. It even shipped in with a cold pack! Before purchasing, I was a bit skeptical because I had no luck with my tank for nearly 3 weeks. But this stuff really saved the day. ## Frequently Bought Together - FritzZyme Turbo Start 900 Saltwater (4 oz) - API SALTWATER MASTER TEST KIT 550-Test Saltwater Aquarium Water Test Kit - Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automatic Temperature Compensation --- ## 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/186573235-fritzzyme-turbo-start-900-saltwater-4-oz](https://www.desertcart.tn/products/186573235-fritzzyme-turbo-start-900-saltwater-4-oz) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-12*