Seachem Replenish

Seachem Replenish

Seachem Replenish is a mineral water conditioner for aquarium keepers using reverse osmosis (RO) or deionised (DI) water. It restores and maintains general hardness (GH) by replacing physiologically relevant minerals removed during RO/DI filtration, making it suitable for fish adapted to mineralised water.

Seachem’s proprietary salt blend contains both “soft” salts, including sodium and potassium, and “hard” salts, including calcium and magnesium. Restoring mineral content helps support the salt-and-water balance required by fish kept in water with low mineral levels.

Key Benefits

• Restores and maintains aquarium GH after RO or DI filtration.
• Replenishes calcium, magnesium, sodium and potassium salts.
• Raises GH by 1 meq/L (2.8 dGH) at the stated dosage.
• Designed for restoring mineral content in purified aquarium water.

Dosage

• Add 5 mL (1 capful) per 40 L (10 US gallons) to raise GH by 1 meq/L (2.8 dGH).
• For RO or DI water, the recommended restoration level is 1–2 meq/L: use 5 mL for each 20–40 L (5–10 US gallons).

Suitable For

• Aquariums filled or topped up with RO or DI water.
• Fish whose natural environment has higher mineral levels.
• General hardness restoration in freshwater aquariums.

Specifications

• Ingredients: calcium chloride, magnesium chloride, sodium chloride and potassium chloride.
• Guaranteed analysis per 1 g: calcium 13.00–14.00%; magnesium minimum 1.20%; potassium minimum 0.12%; sodium 0.60–0.70%.
• GH guide: 0–1 meq/L soft; 1–2 moderately soft; 2–3 slightly hard; 3–4 moderately hard; 4–6 hard; 6+ very hard.

What's Included

• 250 ml (0.066 gal) Seachem Replenish.

Frequently Asked Questions

What does Seachem Replenish do?
It replaces key minerals removed by reverse osmosis or deionised filtration and raises general hardness (GH).

How much Replenish should I add to RO water?
Use 5 mL for every 20–40 L of RO or DI water to restore GH to the recommended 1–2 meq/L range.

How much does 5 mL raise GH?
Adding 5 mL to 40 L raises GH by 1 meq/L, equivalent to 2.8 dGH.

Is Seachem Replenish suitable for a planted aquarium?
For restoring GH in a planted aquarium, Seachem recommends Seachem Equilibrium.

Which minerals are in Seachem Replenish?
It contains calcium chloride, magnesium chloride, sodium chloride and potassium chloride.

When can I expect delivery?

• Gauteng (Jhb/Pta) - 1-3 working days
• Nationwide (Cpt/Dbn+) - 2-5 working days
• Outlying Areas - 3-7 working days

All orders are sent via Economy Road, typically through Fastway or Internet Express Couriers*. Estimated timeframes are not guaranteed. Once the order is collected by the courier, we have no control over third-party logistics and cannot make any time promises.

If you prefer a faster 🚀 shipping option, we also offer The Courier Guy during checkout in the dropdown selection. Please note that this option is not free, and you must choose it to use it. Please pay careful attention to the cutoff times and delivery timeframe for these options during checkout.

Enjoy the convenience of collection points and lockers! 📦

No more waiting at home or at work for your delivery. Simply choose a collection locker or pickup point and collect your order when it suits you.

Delivery times to lockers and pickup locations typically range from 2–7 working days, depending on your location.*

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Collection timeframes:

• Bob Box: Collect within 2 days of receiving your collection notification.
• PUDO Lockers: Collect within 36 hours of receiving your collection PIN or SMS notification.

If a PUDO parcel is not collected within 36 hours, it will automatically be transferred to the nearest PUDO Kiosk or Depot at no additional cost. The parcel will then be held there for approximately 2 days before being returned.

Please ensure you collect your parcel within the applicable collection period. Uncollected parcels will be returned to the sender, and additional shipping charges may apply should the order need to be resent.