Fritz R/O Recharge replenishes essential minerals and electrolytes to reverse osmosis or other purified water to reestablish the desired natural water chemistry for your freshwater aquarium habitat. The mineral salts in R/O Recharge easily restore optimal GH, TDS and KH when used as directed. Our formula provides a beneficial ratio of elements to improve osmoregulation including potassium, calcium, magnesium, and sodium.
Add 1 teaspoon per 10 US gallons of RO, RO/DI, or other purified water

Measure GH and KH levels with Fritz test GH and KH test kits before and after dosing.

Limit change in KH to a maximum of 1 dKH (18 ppm KH) per day when fish are present.
Fish | GH Range |
|---|---|
Very soft water fishes (Discus) | 0–70 ppm GH |
Typical freshwater fish (community species) | 70–140 ppm GH |
Goldfish and Koi | 140–210 ppm GH |
Hard water species (African cichlids) | 210 + ppm GH |

RO Recharge can also be added to established systems when GH or KH levels are low.

To reduce GH or KH levels, perform partial water changes with untreated RO or RO/DI water.
No - R/O Recharge does not contain a dechlorinator. If using this product with tap water, you will also need to add a dechlorinator like Fritz Guard, Fritz ACCR, or Fritz Complete.
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| Item # | Size | Case QTY | UPC |
|---|---|---|---|
| 75080288 | 1 lb (453 g) | 12 | 080531802885 |