SKU: I023553_EACH Aqua One Carbonate Hardness Booster will ensure your aquarium is at optimum levels to ensure your inhabitants are kept at their best. Carbonate hardness (or carbonate alkalinity) is an important factor in dictating the pH of an aquarium, as well as the stability of the pH.

Carbonates are utilised by many invertebrates such as snails, corals and bivalves. It is important to maintain a stable carbonate hardness level in order to ensure the well being of aquarium inhabitants.

COMBINED SHIPPING We will combine postage on orders over NZ$70 item value. Just send us a message listing the items you would like - this MUST include the SKU number (eg. I028140_EACH) shown at the top of the Item Description and the Quantity you require. We will then create a Custom Listing for you to purchase with combined shipping

CUSTOMS DUTIES If your combined purchase is over the tax-free threshold of NZ$380 for imports into New Zealand, a Customs duty fee may/will apply when accepting your item/s from your Post Office. Find out what the duty fee will be by using the calculator at: http://www.whatsmyduty.org.nz Country Trading Store will not accept a return or refund your item if you refuse to pay the duty fee to receive it.