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Seachem PhosGuard is a highly efficient filtration media designed to remove excess phosphate (PO₄³⁻) and silicate (SiO₂) from both marine and freshwater aquariums. It plays a crucial role in maintaining a balanced and healthy aquatic environment by preventing algae growth, which can thrive in the presence of high nutrient levels. Phosphate and silicate accumulate from fish waste, uneaten food, and the breakdown of organic matter. In addition, water sources used for top-offs or water changes can also introduce these compounds, further escalating the potential for algae issues.
PhosGuard is made from aluminum oxide and features a spherical bead design, which maximizes water flow through the media. This shape ensures that water can efficiently pass through the filter media, preventing compaction that can occur with granular phosphate removers. As water flows through PhosGuard, phosphate and silicate are rapidly absorbed, leading to cleaner and clearer water, and thus a healthier tank environment.
When using PhosGuard, it's important to pre-wet the media before use, especially in marine setups, to avoid generating excess heat. Rinsing the product with freshwater is recommended, and placing it in a high-flow area of the filtration system (such as a canister filter or media bag) will ensure maximum effectiveness. A standard dosage is 85 mL for every 200 liters of saltwater or 400 liters of freshwater. After 4 days of use, phosphate and silicate levels should be tested. If these levels haven’t dropped to the desired concentrations, the media may need to be replaced. However, once levels stabilize, PhosGuard can be left in place until it becomes exhausted.
PhosGuard is inert, meaning it does not release any absorbed phosphate or silicate back into the water, even after saturation. It can also be removed, dried, and reused if not fully exhausted, making it a flexible and cost-effective option for phosphate control. While it is effective in both freshwater and saltwater environments, Seachem advises against using it in phosphate-buffered freshwater systems, as this may interfere with the buffering capacity.
It is worth noting that some aquarists have raised concerns about aluminum oxide-based products, like PhosGuard, potentially releasing aluminum into the water, which might harm corals in reef tanks. Seachem has conducted controlled experiments to address these concerns, finding no detectable aluminum release under normal reef conditions (pH near 8). However, under conditions of low pH and high dosages, aluminum release can occur, but only at levels far beyond the recommended dosage. Therefore, PhosGuard is safe for use in marine and reef aquariums when used correctly.
In summary, Seachem PhosGuard is a versatile, highly porous, and fast-acting media that effectively controls phosphate and silicate levels, helping to prevent algae outbreaks and maintain optimal water quality in both freshwater and marine aquariums. Proper use and regular testing are key to ensuring the longevity and effectiveness of the product.
Important Notes:
Our goal is to use the fastest delivery service possible, although the shipping fee may be higher, we always want our customers to be satisfied and make sure the livestock arrives at your door safe and healthy.
** DOA POLICY UPDATED AUGUST 02 2023
** Area do not ship.
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** For other shipping.
However, the shrimp and fish you receive may be discolored and the reason of this issue is strong vibration during transportation and they're not be fed during the transport period
To handle this problem we highly recommend to you:
🚩Let the fish relax helps them adapt to any changes in water temperature in the tank. Also prevents pH shock - an imbalance between the water in the shop tank and your tank.
🚩Place the fish bag in a cool, corner, and dark place. Prevent the bag from being bumped, slipped, or dropped. This'll give your new fish a good recovery and acclimatization after a shaky ride from the shop to your home.
🚩Feed your old fish first to distract them, preventing them from bullying your new fish.
🚩Your new aquarium tank should have a pH of zero ammonia and chlorine before adding new fish.
🚩Turn off the lights, reduce the glare in the room, or limit the light entering the aquarium. This will help the new fish not be stressed.
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The long finned Cory's are amazing. Beautiful condition and their tails are stunning.
Received in great condition although was missing a few. That issue got fixed quite quickly. Very happy with them.
Arrived in excellent condition. They're enjoying swimming around in their new tank.
Arrived in excellent condition and great addition to my tanks.
I’m a many times repeat customer here. As always, these were a perfectly healthy group of animals. I am always blown away by how little stress they seem to experience, adjusting to my tanks immediately. Will be back again!