Possibly. Fresh Trace™ is exclusively intended for freshwater tanks and formulated for the needs of Freshwater fish. Additionally, many fish, plants, and invertebrates are stressed by sudden high-percentage water changes and shifts in water parameters. We recommend to follow the dosing instructions and keep water changes to 30% of the tank or less. More sensitive tank inhabitants will do better with smaller, more frequent water changes and slower alterations of water parameters.
A note about copper:
Fresh Trace™ does contain copper, as this and other trace elements are absolutely necessary for the health of fish and invertebrates. Like all trace elements, copper can become stressful if a high enough amount is built up in the system. However, the amount of copper included in Fresh Trace™ and other trace element supplements is so low that a gross overdose of many times the recommended amount all at once is necessary to stress invertebrates like shrimp and snails. Under any reasonable circumstances of use, Fresh Trace™ is incapable of posing a danger of copper or other trace element toxicity to aquarium inhabitants.
Fresh Trace™ Compatibility Guide
Green: This product is safe for these tank inhabitants. Take care to avoid sudden large shifts in water parameters within the tank, and review the dosing instructions carefully to avoid improper dosing.
Orange: These tank inhabitants are more sensitive, and while the product can still be used on them, it's best to start with a partial dose and work up to the full dose over time
Red: This product is either notably stressful or utterly unsuitable for these tank inhabitants. It would be best to opt for a different product if possible. Click tank inhabitant name for alternate products.
Black: There should never be any need to use this product in a tank with these tank inhabitants - we have no data as to compatibility for this reason. Click the tank inhabitant name for alternate products.
| Freshwater Community Fish | Saltwater Community Fish | Scale-less fish |
| Sharks | Rays | Eels |
| Freshwater Sharks | Freshwater Rays | Freshwater Eels |
| Loaches | Catfish | Aquatic Frogs |
| Shrimp | Snails | Clams |
| Plants | Corals | Exotic Invertebrates |
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