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Thread: Strange Growth on Rock
05-02-2012, 04:49 PM #1
Strange Growth on Rock
Quick question: I am in the process of cycling a 29 gallon using the fishless method. Current water parameters are:
Ammonia 1 ppm, level maintained by adding ammonia every morning
Nitrites 5ppm, reading as the maximum on the color chart, so it could be higher
Nitrates approx 20 ppm
I'm a little surprised to be reading nitrates so early on in the process (less than two weeks). I thought it would take a while longer for them to show up.
My question is that I've noticed a fuzzy, white moldy growth on one of the large rocks. I have attached pics.
I wonder if I should take the rock out and scrub it off with a coarse brush and let it sit in a separate bucket for a while, or perhaps boil it on the stove. Or maybe just leave it alone? What do you all think?
05-02-2012, 04:59 PM #2
First off, your nitrites are too high and will interfere with the cycling - do a large water change to get the nitrites below 1 ppm. Your dosing of ammonia is excellent. Your nitrates are high, but the WC for the nitrites will fix that too.
The growths look a little like fungus but I'm no expert - others may have more information. If it is a fungus, I'm at a lost to know what it could possibly feed on.
05-02-2012, 05:22 PM #3
Alrighty - one large water change coming up as soon as I get home from work this evening. I assume that since the tank is still cycling, I should avoid stirring up the gravel? Is 50% too much water to change?
05-02-2012, 05:29 PM #4
I wish I could help identify what that stuff is growing on your rock. Just to safe, I would suggest just cleaning that stuff off. Better safe than sorry
I would also wait a few days before doing any waterchanges. The nitrite eating bacteria grows a lot slower than the bacteria that eats your ammonia so they will need time to catch up. If you don't see the nitrite levels changing after about 5 days, then I would suggest about a 50% waterchange.
As you already have a good level of nitrates, I'm guessing the nitrite eating bacteria is off to a good start and just needs a little more time.If you take your time to do the research FIRST, you can successfully set-up and keep ANY type of aquarium with ease.
"Not using a quarantine tank is like playing Russian roulette. Nobody wins the game, some people just get to play longer than others." - Anthony Calfo
Fishless Cycle Cycling with Fish Marine Aquarium Info [URL="http://saltwater.aquaticcommunity.com/"]
05-02-2012, 08:34 PM #5
I agree with Cliff. If you're doing a fishless cycle, then there really is no need to be doing any water changes at all. In my opinion, those perameters look great to set up a very nicely cycled tank. I would leave it alone and let it run its course.Three-fourths of the Earth's surface is water, and one-fourth is land. It is quite clear that the good Lord intended us to spend triple the amount of time fishing as taking care of the lawn. ~Chuck Clark
05-02-2012, 08:53 PM #6
I now agree with Cliff - the water change should wait. Lowering the nitrites that low would interfere with the nitrite growth. I was thinking ammonia levels ... .
05-02-2012, 08:56 PM #7
OK - water change, cancelled!
But what about the fuzzy white stuff? Leave it, or attempt to remove it? I could swing by the hardware store on the way home and grab a coarse metal brush.
05-02-2012, 09:07 PM #8
Good idea to clean it off but isn't a wire brush rather aggressive? Could a regular scrub brush work with hot water? Maybe even boil the rock first, and after it cools brush away any leftovers?
05-02-2012, 09:32 PM #9
Boiling rocks is not a great idea, some will explode. Personally I would just leave everything alone and not clean anything during cycling. Just let it go until the cycle is complete then scrub it off in tap water.When I go fishing I just place a sharp rock in the water and sit there waiting for all the dead fish to float to the top... Kingfisher
Brutal honesty will be shown on this screen.
I think my fish is adjusting well to the four gallon, He's laying on his side attempting to go to sleep on the bottom of the gravel.
Tolerance is a great thing to have, so is the ability to shut up.
I can explain it to you, but I can't understand it for you.
05-02-2012, 09:44 PM #10
A toothbrush works nice to clean stuff off. It gets into the small crevices.