Seachem PhosGuard 250ml/8.5oz
PhosGuard rapidly removes phosphate and silicate from marine and freshwater aquaria. It is not recommended for phosphate buffered freshwater. PhosGuard is highly porous for high capacity and bead-shaped for optimum water flow. It outperforms all competing products. 500 mL easily treats over 150 gallons*. This product is sold by volume. Cited weight is minimal weight.
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Product Specifications
| Parameter | Value |
|---|---|
| Volume | 250ml / 8.5oz |
| Application | Marine and freshwater aquaria |
| Targets | Phosphate and silicate |
| Recommended Use | Not for phosphate buffered freshwater |
| Form | Bead-shaped, highly porous |
FAQ
Can PhosGuard be used in a phosphate-buffered freshwater system?
No, PhosGuard is not recommended for use in phosphate-buffered freshwater systems.
How much water can 250ml of PhosGuard treat?
The full 500ml version treats over 150 gallons. The 250ml size is a portion of that capacity and is suitable for smaller tanks or as part of a treatment regimen.
Is PhosGuard safe for marine fish and invertebrates?
Yes, PhosGuard is safe for use in marine aquaria and does not harm fish, invertebrates, or beneficial bacteria.
Anna Murray –
I’ve used PhosGuard in my 100-gallon marine tank for three months. Phosphate levels dropped significantly and my algae growth has improved. The product dissolves quickly and works without affecting water chemistry. Easy to add and effective.
Matt Gibson –
Good results in reducing silicate and phosphate. Works well in a mixed freshwater and marine setup. I noticed a clear improvement in water clarity after a few weeks. A reliable product for water treatment.
Faith Rutherford –
After switching from a chemical phosphate remover, I saw a noticeable drop in algae. The 250ml size is enough for my 55-gallon tank. It’s easy to dose and doesn’t cause any water fluctuations.
Carl Grant –
Used it in a freshwater tank with live plants. Phosphate levels decreased and plant growth improved. No negative effects on fish or water parameters. Would recommend for both marine and freshwater setups.