Free Shipping: $250

Buy Now, Pay Later | Financing With Affirm

Reef Charge

Silicate¹⁴+

$15.99

Size

Silicate¹⁴+ supplies a reef-safe, bio-available silicate source for marine aquaria. Controlled additions of silicate encourage diatom blooms, which rapidly outcompete nuisance dinoflagellates. Diatoms may leave a temporary brown film on rock and sand; this is expected and will clear naturally once silicates are depleted. Silicate is also a vital nutrient for sponges and other siliceous filter feeders, making Silicate+ a valuable supplement for biodiversity.

Instructions 

Diatom Bloom / Dinoflagellate Control: Dose 3 mL per 10 gal (38 L) once daily until a diatom bloom establishes. Expect a temporary brown film; this confirms diatoms are consuming silicate. The tank will clear as silicates are depleted.

Sponge & Filter Feeder Support: Dose 1 mL per 10 gal (38 L) every 2–3 days to maintain ~1 ppm SiO₂.

General Notes: Add to sump or high-flow area. Avoid dosing directly onto livestock, heaters, or pumps. Do not exceed 3 ppm silicate at one time. Test silicate with an aquarium test kit when possible. Each 250 mL bottle treats ~800 gallons at 3 ppm, or ~2,400 gallons at 1 ppm.

Ingredients

  • Purified RO/DI water
  • Sodium silicate solution

Storage

  • Keep tightly capped and out of direct sunlight.
  • Store between 15 – 30 °C (59 – 86 °F).
  • Avoid freezing.
  • Slight haze or settling will not affect performance.

Safety Information

  • Not for human consumption.
  • Avoid contact with eyes, skin, and clothing.
  • If on skin or in eyes, rinse with water for 15 minutes.
  • If swallowed, rinse mouth and seek medical advice.
  • Wash hands after use.
  • Keep out of reach of children and pets.
  • Dispose of contents in accordance with local laws.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Reef Charge Dosing Calculator

Enter tank volume, choose a parameter, set current and target, and we’ll show compatible Reef Charge products with exact mL. Works with liters or US gallons.
Enter display volume minus rock/sand displacement if known.
Units adjust automatically (e.g., Alkalinity in dKH, others in ppm).
Enter volume, pick a parameter, then set current and target to see dosing options.
Heads up: These are estimates. Verify with reliable test kits and adjust slowly for livestock safety.