Is it safe to.........

[Carz]

I have a 250 main display that is over 3 years old. I was thinking of redoing the aquascape with the existing rock in the system. I have extra rock that has been in the sump for a few years that I can add to get a different look. What kind of issues would or could I face by doing this??

 

[fachatga]

I don’t imagine much. It’s been in your sump so essentially it’s already in your tank. Just be careful of kicking up tons of sand and debris from the existing work I suppose. That’s all I can think of. Could be something else maybe

 

[G Santana]

I do it all the time, seed rock in sump and move it up to display as needed