How to properly clean

[Sonomakid]

a freshwater tank and filters to convert them to a saltwater setup, also i have read a few articles that say i can use the same sand in my sw as i didnt in my fw is this true ? any suggestions would be great thank you.

[melosu58]

The bacteria is not the same. You can wash it out real good and use it but if it was me I would just buy new sand. Rinse it and put it in the tank. But if you are thinking you would carry over the same nitrifying bacteria you wont.

[Sonomakid]

See that what some of the articles said that the bacteria was the same, i did think that was the caase so i figured i would ask the experts. For cleaning would the vinegar and water be ok ?

[Sonomakid]

also in a 55g would how much t5ho lighting would i need to keep some low light corals if possible, heard many different anwsers on this.

[melosu58]

Vinegar and water or bleach and water will be OK for cleaning.