{"title":"Water Treatment","description":"\u003cp\u003ePremium water treatment solutions: minerals, GH\/KH boosters, conditioners and stabilizers for healthy planted aquariums and aquascapes.\u003c\/p\u003e","products":[{"product_id":"masterline-gh-plus","title":"MasterLine GH Plus","description":"\u003cp data-start=\"501\" data-end=\"661\"\u003eMasterLine GH Plus raises general hardness (GH) by adding bioavailable calcium and magnesium. Ideal for aquariums using RO water, soft tap water or active soil.\u003c\/p\u003e","brand":"MasterLine","offers":[{"title":"250 ml","offer_id":49423426519370,"sku":null,"price":20.17,"currency_code":"EUR","in_stock":true},{"title":"500 ml","offer_id":49423426552138,"sku":null,"price":30.21,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0771\/3685\/5370\/files\/Frame7_5_-min.png?v=1731648647"},{"product_id":"2hr-aquarist-apt-sky","title":"2HR Aquarist APT SKY – Remineralizer for Aquascaping","description":"\u003cp\u003eAPT SKY is a GH booster and remineralizer for RO\/RODI water, developed specifically for planted aquariums. It raises water hardness (GH) by replenishing calcium and magnesium without altering NPK values, KH, or pH — a key distinction from most conventional remineralizers on the market.\u003c\/p\u003e\n\n\u003cp\u003eAPT SKY is approximately 3 times more concentrated than standard remineralizers. Each 5 ml \/ 3.5 g added to 60 liters delivers 12 ppm calcium and 3.5 ppm magnesium, raising GH by 2.5 dGH. Recommended starting dose: 15 ml per 60 L of RO\/RODI water.\u003c\/p\u003e\n\n\u003ch3\u003eWhen do you need APT SKY?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eWhen using reverse osmosis (RO\/RODI) water — remineralization is essential\u003c\/li\u003e\n  \u003cli\u003eIn soft water aquariums with shrimp or demanding plant species\u003c\/li\u003e\n  \u003cli\u003eWhen you want to keep shrimp and hard water plants alongside soft water species\u003c\/li\u003e\n  \u003cli\u003eWhen GH is below 5 dGH — recommended target range: 5–8 dGH\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAPT SKY vs APT SKY PLUS\u003c\/h3\u003e\n\u003cp\u003eAPT SKY does not alter KH or pH — ideal for tetras, rare soft water plants, and shrimp. APT SKY PLUS moderately raises KH to approximately 2 dKH and buffers pH to 7.2–7.6 — better suited for guppies, mollies, and snails.\u003c\/p\u003e\n\n\u003ch3\u003eComposition\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCalcium (Ca):\u003c\/strong\u003e 21.5%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMagnesium (Mg):\u003c\/strong\u003e 5.4%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIron (Fe):\u003c\/strong\u003e 0.06%\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eBoron, Copper, Manganese, Molybdenum, Zinc\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeaweed extract\u003c\/strong\u003e (\u0026lt;1%)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eForm:\u003c\/strong\u003e Powder (fast-dissolving, non-caking)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDosing\u003c\/h3\u003e\n\u003cp\u003eFor RO water: 15 ml per 60 L. For soft tap water: measure current GH with a test kit and use the 2HR Aquarist dosing calculator. During water changes, dose based on the volume of new water added — not the total tank volume.\u003c\/p\u003e\n\n\u003ch3\u003ePair with\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAPT 3 or APT 1 – for plant fertilization\u003c\/li\u003e\n  \u003cli\u003eAPT Start – when setting up a new aquarium with RO water\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"2HR Aquarist","offers":[{"title":"150 gr","offer_id":49444526752074,"sku":null,"price":17.9,"currency_code":"EUR","in_stock":true},{"title":"800 gr","offer_id":49444526784842,"sku":null,"price":17.9,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0771\/3685\/5370\/files\/aquarium-boutique-150-gr-2hr-aquarist-apt-sky-58672125313354.png?v=1731724909"},{"product_id":"kh-builder-500-ml","title":"KH Builder – Adjust KH and pH with Precision","description":"\u003cp\u003eKH Builder is a liquid supplement that raises carbonate hardness (KH) and potassium levels in aquarium water. It is used to stabilize pH through KH buffering and to provide potassium — an essential macronutrient for aquatic plant growth that is often depleted in RO-based or frequently changed aquariums. Suitable for use alongside RO remineralizers when KH needs to be adjusted independently of GH.\u003c\/p\u003e\n\n\u003ch3\u003eKey benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRaises KH to stabilize pH and prevent pH swings\u003c\/li\u003e\n  \u003cli\u003eAdds potassium — essential macronutrient for aquatic plant health\u003c\/li\u003e\n  \u003cli\u003eCompatible with RO water preparation\u003c\/li\u003e\n  \u003cli\u003ePrecise liquid dosing — easy to adjust in small increments\u003c\/li\u003e\n  \u003cli\u003eAvailable in 500 ml\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen to use KH Builder\u003c\/h3\u003e\n\u003cp\u003eUse when KH is too low (below 3–4 dKH) causing pH instability, or when additional potassium is needed for plant growth alongside a GH booster. Particularly useful in heavily planted aquariums with high plant uptake of potassium.\u003c\/p\u003e\n\n\u003ch3\u003ePair with\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eGH+ ONE PLANT — GH remineralizer for RO water\u003c\/li\u003e\n  \u003cli\u003eBasic Grow — NPK fertilizer\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Aquarium Boutique","offers":[{"title":"Default Title","offer_id":51009619919178,"sku":null,"price":9.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0771\/3685\/5370\/files\/kh-builder-carbonate-hardness-adjuster.jpg?v=1768480045"},{"product_id":"gh-plant-500-ml","title":"GH+ ONE PLANT – RO Water Remineralizer for Planted Aquariums","description":"\u003cp\u003eGH+ ONE PLANT is a fast-dissolving powder remineralizer for RO\/RODI water, specifically formulated for planted aquariums. It raises general hardness (GH) with a 4:1 Ca:Mg ratio — a balance optimized for aquatic plant uptake — without affecting KH or pH. It does not contain potassium or micronutrients, which means it does not interfere with the calibrated dosing ratios of other fertilizers.\u003c\/p\u003e\n\n\u003ch3\u003eKey benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCa:Mg ratio of 4:1 — optimized for aquatic plant requirements\u003c\/li\u003e\n  \u003cli\u003eDoes not raise KH or alter pH\u003c\/li\u003e\n  \u003cli\u003ePotassium-free and micronutrient-free — no interference with fertilizer dosing\u003c\/li\u003e\n  \u003cli\u003eFast-dissolving powder — easy to dose precisely\u003c\/li\u003e\n  \u003cli\u003eSafe for shrimp and sensitive fish\u003c\/li\u003e\n  \u003cli\u003eAvailable in 500 ml (powder)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen to use GH+ ONE PLANT\u003c\/h3\u003e\n\u003cp\u003eUse whenever RO or RODI water is used as the primary water source, or when the tap water GH is too low for aquatic plants (below 4–6 dGH). Particularly important in softwater regions where plants show signs of calcium or magnesium deficiency.\u003c\/p\u003e\n\n\u003ch3\u003eGH+ ONE PLANT vs GH+ ONE SHRIMP\u003c\/h3\u003e\n\u003cp\u003eGH+ ONE PLANT has a higher Ca:Mg ratio optimized for plant uptake. GH+ ONE SHRIMP is formulated with a different mineral balance suited for Caridina shrimp breeding. Choose based on whether plants or shrimp are the primary focus.\u003c\/p\u003e\n\n\u003ch3\u003ePair with\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBasic Grow — NPK fertilizer\u003c\/li\u003e\n  \u003cli\u003eMICRO PLANT One — micronutrients\u003c\/li\u003e\n  \u003cli\u003eKH Builder — if KH adjustment is also needed\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Qualdrop","offers":[{"title":"Default Title","offer_id":51013644484938,"sku":null,"price":11.06,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0771\/3685\/5370\/files\/gh-plus-plant-ro-water-mineralizer.jpg?v=1768480045"},{"product_id":"apt-sky-plus","title":"APT SKY PLUS","description":"\u003cp\u003eProduct: 2HR Aquarist APT SKY PLUS (APT SKYPLUS)\u003cbr\u003eCategory: Remineraliser \/ GH booster for freshwater aquariums\u003cbr\u003eManufacturer: The 2Hr Aquarist (Singapore)\u003cbr\u003eForm: Powder\u003c\/p\u003e\n\u003cp\u003eDescription:\u003cbr\u003eAPT SKY PLUS is a highly concentrated remineraliser for freshwater aquariums using RO or soft water. It raises general hardness (GH) without affecting NPK values. Unlike APT SKY, it moderately raises KH to ~2 dKH and buffers pH to 7.2–7.6. Suitable for tanks with guppies, mollies, snails, and hardwater-preferring plants. Approximately 3x more concentrated than standard remineralisers.\u003c\/p\u003e\n\u003cp\u003eIngredients:\u003cbr\u003e- Calcium (Ca): 16.6%\u003cbr\u003e- Magnesium (Mg): 3.5%\u003cbr\u003e- Boron (B): 5 mg\/L\u003cbr\u003e- Copper (Cu): 1 mg\/L\u003cbr\u003e- Iron (Fe): 0.05%\u003cbr\u003e- Manganese (Mn): 13 mg\/L\u003cbr\u003e- Molybdenum (Mo): 0.01 mg\/L\u003cbr\u003e- Zinc (Zn): 8 mg\/L\u003cbr\u003e- Seaweed extract: \u0026lt;1%\u003c\/p\u003e\n\u003cp\u003eDosage:\u003cbr\u003e- 3.5 g (5 ml) per 60 litres → +12 ppm Ca, +3.5 ppm Mg, +2.5 dGH\u003cbr\u003e- Standard starting dose with RO water: 15 ml (10.5 g) per 60 litres\u003cbr\u003e- Dose at water changes based on the volume of water replaced\u003c\/p\u003e\n\u003cp\u003eEffect on water parameters:\u003cbr\u003e- GH: raises\u003cbr\u003e- KH: moderately raises to ~2 dKH\u003cbr\u003e- pH: buffers to 7.2–7.6\u003cbr\u003e- NPK: no effect\u003c\/p\u003e\n\u003cp\u003eSafety: Safe for shrimp, fish, and plants at recommended dosage\u003c\/p\u003e\n\u003cp\u003eComparison with APT SKY:\u003cbr\u003e- APT SKY — no effect on KH or pH; for tetras and softwater plants\u003cbr\u003e- APT SKY PLUS — moderately raises KH; for guppies, mollies, snails\u003c\/p\u003e\n\u003cp\u003eAvailable sizes: 70 g, 150 g, 350 g, 700 g\u003c\/p\u003e","brand":"Aquarium Boutique","offers":[{"title":"Default Title","offer_id":61726159634762,"sku":null,"price":17.8,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0771\/3685\/5370\/files\/29.jpg?v=1777892559"}],"url":"https:\/\/aquarium-boutique.com\/collections\/water-treatment.oembed","provider":"Aquarium Boutique","version":"1.0","type":"link"}