dormant 3 weeks

[Toxiq reef]

tank has been empty 3 weeks, minus half water and substrate, found another use for the tank. Reuse substrate or start it over?

 

[peasofme]

reuse

 

[Sugar Magnolia]

Depends, how long was the tank set up prior to you leaving it half empty for three weeks?

 

[DustinB]

3 weeks of water with no flow is never good for anything. You can reuse the substrate just fine, but rinse thoroughly first.

 

[Chris27]

Rinse in with tapwater, and let it dry in the sun on a tarp, it'll be good for your next project.