Fresh Water rock to Salt?

[Roman009]

I have 3 pieces (~10 or #15#) of CaribSea Life Rock that I didn’t need in a tank so I stuck it in my African cichlids freshwater tank. It’s been there for a month or so. I now have a need for it in a new FOWLR tank that I’m setting up. I’ve ordered some new Real Reef Rock from BRS which will need to cure when it arrives.
Can I simply transfer the rock from the fresh tank along with the newly delivered rock and let them cure together? I know the nitrifying bacteria in fresh is different from Salt - just wondering if it’ll negatively affect the cure. No fish Are going into the tank anytime soon. I’m just curing the rock and sand in the new DT until the cycle completes.

 

[Brad Waddell Wrath's Reef]

I think it will be fine.

 

[Copingwithpods]

The potential downsides I see are

Ammonia spike from dying bacteria

No3/po4 leach after cure depending on your levels in the freshwater tank

Cross contamination of some kind: hopefully someone chimes in on this as I'm not too sure about if it's even a thing. One of those things you remember hearing somewhere.

 

[|Tom the Bomb|]

Im more experienced in fw than sw I HAVE used freshwater rock in a saltwater FO tank a long time ago without problems.

The potential downsides I see are

Ammonia spike from dying bacteria

No3/po4 leach after cure depending on your levels in the freshwater tank

Cross contamination of some kind: hopefully someone chimes in on this as I'm not too sure about if it's even a thing. One of those things you remember hearing somewhere.

Typically in FW my No3 levels are at 10ppm and Po3 at 0.1 because I use phosphate remover media.
As for leeching... doesnt really matter too much just do a bunch of water changes and let the tank cycle and use some phosphate remover media

 

[Reeffragger]

Over thinking things.. toss the rock in your salt water tank