Seachem Equilibrium 300g

Restores and maintains mineral balance and GH

Does not contain sodium or chloride like competing products

Ideally suited for use with RO or DI water or any mineral deficient water

Plants use minerals from the soil to build the complex molecules they need to survive and grow. Poor plant growth may be due to a deficiency of one or more minerals.

Seachem Equilibrium ™ is specifically designed to establish the ideal mineral content for the planted aquarium. It contains no Sodium Chloride as both Sodium and Chloride are elements which do not quickly deplete in an aquarium , chloride can in fact do more harm than good . Some products on the market use a high % of Sodium Chloride ( salt) in their mixes as it is cheap .

Seachem Equilibrium is ideally suited to RO water ( reverse Osmosis) or DO ( deionized ) water .

Seachem Equilibrium™ raises the essential mineral/electrolyte content (General Hardness) of the water to balance with and promote stability of the carbonate hardness. To maintain KH, we recommend Alkaline Buffer™.

SEachem Equilibrium™ contains only calcium, magnesium, and potassium salts, which aid in fish metabolism, but are also highly beneficial to plant growth.


To raise mineral content/general hardness (GH) by 1 meq/L (3 dH), add 16 g (1 tablespoon) for every 80 L when setting up an aquarium or when making water changes (add to new water).

For the best solubility we recommend mixing with 1 L (1 qt.) of water (the resulting mixture will have a white opaque appearance). When this mixture is added to the aquarium it will impart a slight haze that should clear within 15–30 minutes.

We aim to dispatch all orders the same working day provided it is received before 1pm and payment confirmed, subject to stock availability. Orders received after this time may not be dispatched until the next working day. In the unlikely event of an item being out of stock, we will contact you via email to advise you of an estimated delivery date, to give you the option of cancelling or waiting.

Small and lightweight items (below 2kg) will normally be sent via Royal Mail 1st class, and will be delivered within 5 days, usually next day.
Larger orders with a total weight over 2kg will normally be sent via parcel carrier for delivery within 2 working days.
Any orders placed after 11am on Saturday will be dispatched on Monday. If the order is placed over a bank holiday it cannot be dispatched until the first working day.
We reserve the right to use the most cost effective service to get your order to you as quickly as possible.

For more details, see delivery info.