- Reaction score
- More than 10 years
Hello, I bought a filter for my fish tank today form my friends that were having a benefit sale. It was $5. It is in VERY nice condition. It is Aquatech (are they a good brand?). My question is, how do I safely remove the other filter and add this one WITH OUT my tank cycling? Should I have the new one running with the old one for a week or something? Thanks!