Use it only after identifying the problem as far as possible and follow the product description carefully. Poor water quality should always be checked and corrected first.

Calculate actual water volume and do not exceed the recommended dose or treatment time. Consider sensitive shrimp, snails, plants and filter bacteria.

Follow the product-specific directions. Activated carbon, UV and some media may need removal, while good oxygenation is often especially important.

Stop according to the safety directions, increase aeration and perform a controlled water change if needed. Seek expert help for severe or persistent symptoms.