Florin Delta GH+. Kit includes 250 g; supplier image may show another size.

Axolotl RO Water Kit

$34.88
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Florin Delta GH+. Kit includes 250 g; supplier image may show another size.
  • Florin Delta GH+. Kit includes 250 g; supplier image may show another size.
  • Florin Delta KH+. Kit includes 250 g; supplier image may show another size.
  • Remineraliz. Kit includes 250 ml; supplier image may show another size.
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Axolotl RO Water Kit

Axolotl RO Water Kit

$34.88

Prepare RO/DI water with separate control over general hardness, carbonate hardness, and mineral replenishment. The Axolotl RO Water Kit contains three Brightwell freshwater supplements for a measured water-preparation routine.

What's included

  • Florin Delta GH+ — 250 g: general-hardness mineral supplement.
  • Florin Delta KH+ — 250 g: carbonate-hardness and alkalinity supplement.
  • Remineraliz — 250 mL: mineral replenishment for purified water.

Test, mix, and recheck

Measure GH, KH, and pH before dosing. Prepare replacement water in a separate clean container and follow each current product label. GH+ and Remineraliz both increase GH; account for their combined contribution rather than automatically adding a full dose of each. Recheck after mixing and match the aquarium's temperature and intended water chemistry before use. TDS alone does not replace GH and KH testing.

KH+ is formulated for freshwater systems targeting pH 7.8 or below. This kit provides adjustable supplements, not a fixed universal recipe or a guarantee of particular readings.

An RO filter, water, test kits, measuring tools, and dechlorinator are not included. Supplier images may show alternate sizes. Brightwell Direct fulfills the component products; shipping is calculated at checkout and items may arrive separately.

Water preparation guide

Read our RO water, GH and KH guide for a measured preparation workflow. Compare individual mineral supplements before choosing a dosing plan.

RO water preparation

Measure. Mix. Recheck.

Three separate supplements for preparing replacement water. Select amounts from your measured starting water and intended aquarium conditions.

  1. 01 · General hardness Florin Delta GH+

    Florin Delta GH+

    1 × 250 g container

    Adds minerals that raise general hardness. Allow for any GH increase already supplied by Remineraliz.

  2. 02 · Carbonate hardness Florin Delta KH+

    Florin Delta KH+

    1 × 250 g container

    Adjusts alkalinity and buffering. Check both KH and pH; formulated for freshwater targets of pH 7.8 or below.

  3. 03 · Mineral replenishment Remineraliz

    Remineraliz

    1 × 250 mL bottle

    Replenishes minerals in purified water and also increases GH. Recheck hardness after mixing.

GH+ and Remineraliz both raise GH. Their doses must account for one another; this is not a fixed three-product recipe. Prepare and test water separately before aquarium use.

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