Boiling "wild" rocks to make them safe?

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Find on ground, rise off, add to tank. What do you think you're going to introduce from an inert rock?
Algae. It grows on rocks that are in the woods due to the dampness the forest, and the New England weather offers it. Scrubbing all visible pieces doesn't mean a tiny unnoticeable portion won't be missed and then reproduce dramatically in the aquarium. That's why I was wondering if boiling would kill all algae.


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Algae. It grows on rocks that are in the woods due to the dampness the forest, and the New England weather offers it. Scrubbing all visible pieces doesn't mean a tiny unnoticeable portion won't be missed and then reproduce dramatically in the aquarium. That's why I was wondering if boiling would kill all algae.


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You really think algae grows on rocks in the woods? I'm guessing you're thinking of some sort of moss or lichen. Technically I guess half of a lichen could be considered an algae, but still. Any remnant of terrestrial moss or lichen is not going to survive, let alone thrive underwater.
 
I don't do anything more than give the rock a good rinse and a scrub with a bristle brush if it's particularly dirty. Power washing them (in the summer in my 'neck of the woods') is very effective as well. I do that with new driftwood pieces or to "freshen" them up. Never had a problem.
 
I make a fire outside and boil them in regular water for 20 minutes.that's all that's needed
 
It will be fine. Tank raised rocks however is a whole different story
 
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