Rock Has Black Algae like substance on it - Tropical Fish Keeping - Aquarium fish care and resources
LinkBack Thread Tools
post #1 of 3 Old 04-08-2007, 12:43 AM Thread Starter
New Member
Rock Has Black Algae like substance on it

Hi Guys,

I purchased a small rock from my local fish shop and when i got it home i was boiling some hot water to clean any bacteria etc on the rock before putting it in my tank. But i noticed this black algae or moss on the rock and i didnt put the rock in. I have tried a couple of times to boil the rock to remove the black substance and to no effect. Does anyone have a suggestion to remove this black substance from the rock can i leave it in a bucket with some sort of chemical to kill the algae or whatever it may be?

Cheers Brad
bradley22 is offline  
Sponsored Links
post #2 of 3 Old 04-08-2007, 05:23 AM
The-Wolf's Avatar
try a bleach dip.

add 1ml of bleach to 1ltr of water (if useing a 5ltr bucket, 5ml of bleach is needed, obviouse but it needs saying)
dip the rock in the bleach for around 1 min.
remove rock and rinse untill you can not smell any bleach on it.
leave the rock to air dry, preferably in the sun.

before placeing it in the tank smell it again, if you can still smell bleach then repeat the above rinsing process.

I can not stress enough that bleach will wipe out all of your tank if it gets in,
you have to be certain that you have removed all traces of the bleach from the rock.

also please take the precautions stated on the bottle of bleach, after all it is an acid and can harm you.

Sig is loading, if no sig appears in 1 min please click
The-Wolf is offline  
post #3 of 3 Old 04-08-2007, 08:59 PM
New Member
If you have any ramshorn snails in your tank they could probably control the algae. However, from your description of the algae, it might be blue-green algae, which is a bacteria.
mysticevils is offline  

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Forum Replies Last Post
Cloudy tank + black dust like substance on rocks! help! oznerol Beginner Freshwater Aquarium 4 09-14-2009 01:38 PM
Live rock has Algae. Bartman Beginner Saltwater Aquariums 3 04-12-2009 04:45 PM
Green algae on my rock what should I do with it? Steve121212 Coral and Reef Creatures 1 10-08-2008 07:06 PM
Red algae on live rock mayamaya Beginner Saltwater Aquariums 4 03-10-2008 11:14 PM
What rock to grow algae on musho3210 Beginner Freshwater Aquarium 2 01-19-2007 03:45 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome