Renew Labs · Made in Houston, Texas
Renew Labs Aquarium Top-Off Water
Renew Labs Aquarium Top-Off Water is deionized water made in Houston, Texas. When aquarium water evaporates the minerals stay behind, so topping off with tap water slowly raises them. Deionized water replaces only what evaporated. Pour it in directly or through your auto top-off reservoir, and remineralize or add salt mix as your tank needs. Check parameters with your own test kit. Not for human consumption. Keep out of reach of children.
Why Deionized Water
- Top Off Evaporation – Replace only the water that evaporates, without adding more minerals to your tank.
- Reef, Nano, Shrimp & Planted Tanks – Remineralize or add salt mix as your tank needs.
- No RO/DI Unit Needed – Skip the filter system. Pour into your tank or auto top-off reservoir.
Made For
- Reef and nano reef tanks
- Shrimp tanks
- Planted freshwater tanks
- Auto top-off (ATO) reservoirs
How to Use
- Pour directly into the tank or into your auto top-off reservoir.
- Replace only the water that evaporated.
- Remineralize or add salt mix as your tank needs for water changes.
- Check parameters with your own test kit.
Specifications
| Brand | Renew Labs |
|---|---|
| Manufacturer | Renew Lab Group, Houston, Texas |
| Country of origin | USA (Made in Houston, Texas) |
| Water type | Deionized |
| Size | 1 Gallon |
| Container | 1 gallon HDPE jug |
| Net contents | 128 fl oz (3.78 L) in a resealable jug. Also available as a 2-pack and a 4-gallon case. |
| Units per pack | 1 |
| Shipping weight | 9.2 lb |
| SKU | RNW-AQUA-1GAL |
| UPC | 850092848246 |
Made in Houston, Texas
Every bottle of Renew Labs water is deionized and bottled in Houston, Texas, USA by Renew Lab Group, and shipped direct from our website.
Safety: Not for human consumption. Keep out of reach of children.
Frequently Asked Questions
Why use deionized water to top off an aquarium?
When aquarium water evaporates, the minerals stay behind. Topping off with tap water slowly raises them. Deionized water replaces only the water that left.
Can I put it straight into my reef tank?
For evaporation top-off, yes, pour it in directly or through your auto top-off reservoir. For water changes, mix salt or remineralize as your tank needs.
Do I need an RO/DI unit?
Not for top-off. Renew Labs Aquarium Top-Off Water is already deionized, so there is no filter system to buy or maintain.
Is it good for shrimp tanks?
Shrimp keepers often start from mineral-free water and remineralize to their target. Check your parameters with your own test kit.
Does it contain salt or minerals?
No. It is deionized water with nothing added.
How much water is in this product?
Renew Labs Aquarium Top-Off Water – 1 Gallon contains 128 fl oz (3.78 L) in a resealable jug. Also available as a 2-pack and a 4-gallon case.
Where is Renew Labs water made?
Renew Labs water is made and bottled in Houston, Texas, USA by Renew Lab Group. It is not for consumption.









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