- Joined
- Jul 17, 2019
- Messages
- 44
- Reaction score
- 31
I have a little bit of 20 gallons of old water from my old setup which I have taken down from March. Can I use this old water to cycle my new nano setup ? I’m asking because I have been leaving it to stay in my old sump without light and circulation for months and it has a strong smell ;Vomit. I’m thinking of using it to cycle the new tank and then do 50% water change each week after the cycle to get rid of the strong smell.