To store saltwater, particularly for aquarium use, you typically use clean, non-reactive, food-grade plastic containers that prevent contamination and evaporation.
Storing saltwater correctly is essential for maintaining its purity and stability, especially when used for sensitive applications like marine aquariums. The choice of container and storage method plays a significant role.
Choosing the Right Container
The most critical factor in storing saltwater is the container material. It must not leach harmful chemicals into the water. Plastic is the most common choice, but not all plastics are suitable.
Recommended Container Types
Based on common practice and the provided reference:
- Rubbermaid BRUTE Trash Cans: As highlighted in the reference, these are a highly popular and trusted choice among reef aquarium keepers ("reefers").
- Why they are used: They have a long history of use (decades), are considered safe for this application, and are readily available at hardware stores. Their sturdy construction also makes them practical for mixing and storage.
- Food-Grade Buckets: Similar to the BRUTE cans, ensure they are certified food-grade plastic (often indicated by symbols like HDPE or PP). These are commonly used for smaller volumes.
- Dedicated Water Storage Containers: Various companies produce containers specifically for water storage, some designed with features useful for aquarium keepers (e.g., spigots, level indicators).
Important Note: Avoid using containers that have previously held chemicals, detergents, or anything non-food-grade, as residues can be harmful. Even new containers should be thoroughly rinsed.
Essential Storage Practices
Beyond the container itself, several practices ensure the saltwater remains suitable for use.
- Cleanliness: The container must be spotlessly clean before adding water. Any dirt, dust, or residue can compromise water quality.
- Keeping it Covered: Always keep the container covered with a lid. This prevents:
- Dust, dirt, or other airborne contaminants from entering.
- Evaporation, which would change the salinity (the salt concentration) of the water.
- Dedicated Use: Ideally, use the container only for storing saltwater or purified water intended for saltwater mixing.
- Location: Store the container in a cool, dark place if possible, to prevent potential algae growth (though less likely in pure saltwater) and maintain a stable temperature.
Summary Table
| Aspect | Recommendation | Why? |
|---|---|---|
| Container | Clean, Food-Grade Plastic (e.g., Rubbermaid BRUTE) | Prevents leaching of harmful chemicals. |
| Lid | Always use a tight-fitting lid | Prevents contamination and maintains salinity. |
| Cleanliness | Thoroughly clean before use | Avoids introducing impurities. |
| Use | Dedicated container | Minimizes risk of contamination from residues. |
By following these guidelines, you can effectively store saltwater, ensuring its quality is preserved for its intended use.
