does this product also maintains alaklinity or do I have to dose for that seprately? Like add kalkwasser

This product basically would take care of your Alk, Calcium and Magnesium, at least for most average tanks. Depending on demand you might need to tweak it, but for most mixed reef this would be all you need. You could use Red See Coral Colors ABCD to help improve growth and color. Using Kalkwasser in addition is not necessary but wouldn't hurt. Kalk does have some nice benefits to help increase pH and also helps keep algae issues in check.

How do you add this to a tank with no sump?

mix it with some water and pour it in next to a pump.

How do you add this with no sump?

I would take some water of the tank to dissolve the product and then add it back near the circulation pump.

I tried adding 20g to a small quantity of salt water and then again to RO/DI. The misture is cloudy. Instructions not clear on mixing.

You add the powder directly into your sump filter in the heavy flow area

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Reef Foundation ABC,1kg

Product ID: 283123277

Details

Brand
Red Sea
Liquid volume
1 Liters
Item weight
1 Pounds
Item form
Powder
Manufacturer
TopDawg Pet

🌊Supports stable reef water chemistry

🧪Precise dosing: 1ml adjusts 25 gal

⚖️Balanced coral skeleton elements

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Sold byAmazon BelgiumDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌟 Elevate your reef game with the ultimate coral foundation boost!

OPTIMIZED CORAL GROWTH - Balanced elements prevent growth-limiting deficiencies for vibrant reefs
ECO CONSCIOUS BPA FREE - Safe for all reef life stages with no harmful additives
SIMPLIFIED DOSING FORMULA - One powder replaces three supplements for effortless daily maintenance
P H ALKALINITY STABILITY - Maintains ideal water chemistry to support coral biological processes
ALL IN ONE CORAL FOUNDATION - Combines Calcium, Magnesium, Carbonates, Potassium & Bromine in perfect reef ratios

Red Sea Reef Foundation ABC+ is a 1kg powder supplement expertly formulated to deliver balanced essential elements—Calcium, Magnesium, Carbonates, Potassium, and Bromine—in precise ratios that mimic natural seawater. Designed to simplify reef aquarium maintenance, it supports stable water chemistry and promotes healthy coral skeleton growth, ensuring your reef thrives with vibrant, robust corals.

Specifications

Product Dimensions	12 x 13 x 12 cm; 453.59 g
Item model number	306033
Pet Life Stage	All Life Stages
Item Form	Powder
Allergen Information	BPA-Free
Color	as per image
Quantity	1
Specific Uses	Active
batteries required	No
Batteries Included	No
Item Weight	454 g

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