New Rock for a New Tank? or Seed from Current Tank?

[Megability]

Hi all! -not an aquascape question perhaps but I’m building out a brand new RedSea REEFER 625 and am torn between going all fresh, like using new ReefSaver or similar rock and starting from a scratch, pest-free, but a long(er) cycle...

or seed some great live rock from my current 10year-old BioCube29, but that unfortunately will most certainly have hair algae and others on it -but no pests at least.

What do you think?

Part of me really likes the idea of building from scratch, the other half likes the idea of seeding/reusing what I already have, and helping the cycle time too I’d imagine...

Experienced advice and suggestions welcomed, thanks!

 

[HB AL]

I would use the old rock and add some new rock to it.

 

[lapin]

Either way is fine. I see it as a 50/50
If you want no pests , dry rock. They will come but if your careful, maybe not too many.
Live rock you have will bring stuff. If you have no livestock you might be able to treat the rock and tank.

 

[Katrina71]

+1 add dry rock to existing.

 

[Thaxxx]

Live rock from your cube. That hair algea will probably disappear shortly.
If you've had that rock 10 years you already should know if it has any undesirable pests on it.

 

[arturoo1977]

If you want a shorter cycle and have room in your biocube, then add some dry rock to your biocube and let it sit for a few weeks. When you move them to new tank, they will be bacteria populated.