Help With Black Lava Rock

communityfluvalroma · Apr 25, 2020

Hello all,

I recently ordered some black lava rock for my tank. It was delivered this morning, rinsed thoroughly and added to the tank around 6 hours ago. Two out of the three rocks have developed a white "coating". Does anybody know what this is?

Thanks in advance.

PheonixKingZ · Apr 25, 2020

Very interesting...

Is the coating just in the holes in the rock? Does the with stuff seem to be fuzzy?

communityfluvalroma · Apr 25, 2020

No, it’s seems to be everywhere. Yes, it is fuzzy looking. If I just slightly touch it with my net, it comes away very easily from the rock.

communityfluvalroma · Apr 25, 2020

Here’s a photo of the unaffected lava rock.

Guppy10 · Apr 25, 2020

Probably salts leeching out of the rocks so maybe a soak in a bucket and scrub until it stops appearing.

Retired Viking · Apr 25, 2020

I agree with @Guppy10 ,soak it and see what happens. I picked up several black lave rocks and soaked them for a day but did not have this happen.

communityfluvalroma · Apr 25, 2020

Thanks all. I have now removed the rocks and put into soak for 48 hours just to be on the safe side.

Your help is appreciated as always.

PheonixKingZ · Apr 25, 2020

Sounds correct.

Soak it in hot water in a 5g bucket for 48 hours.

Retired Viking · Apr 25, 2020

I agree, I used hot water too just in case there were any "bug"

Search

Search

Help With Black Lava Rock

communityfluvalroma

Fish Fanatic

PheonixKingZ

Fish Guru

communityfluvalroma

Fish Fanatic

communityfluvalroma

Fish Fanatic

Guppy10

Fish Crazy

Retired Viking

Fish Connoisseur

communityfluvalroma

Fish Fanatic

PheonixKingZ

Fish Guru

Retired Viking

Fish Connoisseur

Similar threads

Most reactions

Useful Links