Description
xOverview
FritzPRO RPM Redline High Alk Salt Mix in the distinctive red box is designed for serious reef and fish-only aquariums. This complete professional marine salt is crafted from premium materials to mirror a balanced seawater mineral profile, with an intentional alkalinity boost to support calcification in systems with elevated nutrient levels. The formulation is nitrate-, phosphate-, and ammonia-free, helping you maintain steadier water parameters as you stock or grow a diverse marine community.
Why RPM Redline High Alk matters
The High Alk version builds on the trusted RPM benefits by delivering higher alkalinity, which can aid calcification processes in compatible setups. It provides a full spectrum of major, minor, and trace elements, similar to natural seawater, while keeping nuisance nutrients in check. This salt works well in both reef tanks and fish-only displays, offering flexibility as your aquascape evolves.
- Complete professional marine salt for reef or fish-only systems
- Contains all essential major, minor, and trace elements
- Enhanced alkalinity levels to support calcification and growth
- Nitrate-, phosphate-, and ammonia-free formulation
- Same great benefits as RPM’s original formula with higher alkalinity for SPS-supportive potential
What to expect when mixing and using
When mixed, RPM Redline aims for natural seawater-like baselines while offering flexibility for higher alkalinity needs. Typical targets include salinity around 35 ppt, alkalinity 10–12 dKH, calcium 400–450 ppm, magnesium 1300–1400 ppm, strontium 9 ppm, and potassium near 400 ppm. Results can vary based on your tank’s inhabitants and maintenance routine, so regular testing is encouraged to tailor the mix to your specific system.
- Salinity: around 35 ppt
- Alkalinity: 10–12 dKH
- Calcium: 400–450 ppm
- Magnesium: 1300–1400 ppm
- Strontium: about 9 ppm
- Potassium: around 400 ppm
This 55-pound Red Box provides a long-lasting supply for ongoing reef maintenance, helping you plan ahead for steady growth and tank upkeep without frequent repurchases. Proper handling and periodic testing support consistent results, whether you’re maintaining a busy SPS-dominated display or a mixed reef community.
FAQ
Q: What systems is FritzPRO RPM Redline High Alk Salt Mix suitable for?
A: Suitable for reef and fish-only marine systems seeking stable alkalinity.
Q: Is FritzPRO RPM Redline free of nitrates, phosphates, and ammonia?
A: Yes, the formula is nitrate-, phosphate-, and ammonia-free.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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