turning rock live again

if it came from a garden..... put it back. Your looking at far more problems than good with something like that. If you need a rock that bad I have about 250lbs of dry rock in my fish room I'll give you a piece

 

Garden = Fertilizer = Dead stuff in tank

 

+1 don't use it!

 

Good luck, let us know how it turns out.

 

I wouldnt risk it personally, there is little to gain and much to lose.

 

good luck, leech away

 

In this hobby it is always better to play it safe or you will definitely be sorry!

 

To be honest I have done this before using a super bad-*** septarian nodule (cool rock) I found in an old rock garden. I can't say for sure if the rock itself was to blame but the tank was always plagued with nuisance algae and I could never keep SPS alive.

How long do you think things could "leech" out of a rock anyway? It could take months, years maybe even depending on the saturation and density of the rock itself.

If it were me I would just leave it in the rock garden and take Glaspie69 up on his offer for free base rock.

I wonder what Tru-Green lawn fertilizer would do to a tank.....

 

One more thing to think about. A lot of rock gardens are spayed with stuff to stop weeds and pests. If the rock is really porous then all that stuff is soaked into the rock as well.

 

+1 on what Shaun and Waverz said - no way to know what the rock garden got sprayed with...

 

Disappointing advice, huh? I'd be reluctant to use it as well. Sorry...