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Old 06/08/2009, 01:26 PM   #1
romsoccer12
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diatom bloom. how to get rid of it

12 week cycled tank. i just a new rock like 2 weeks ago and it got covered in diatoms. now my sand is covered and a couple rocks are covered. what can clean the sand? i have a bunch of nas. snails and cerith snails that do nothing. i have a brittle star who was supposed to help but hangs out in the rock. i cant get a goby because my blenny will attack it. i have a 30gal tank. doing 10-20% water changes every week.


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Old 06/08/2009, 01:44 PM   #2
nikon187
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time, things in a reef tank don't happen overnight. They are part of the natural cycling process


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Old 06/08/2009, 02:20 PM   #3
muddysr5
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nikon is right...time.
Also, diatoms are an indicator of high Nitrates and/or Phosphates. What are you using for source water? Reverse osmosis/deionized water is your best, though fairly expensive to purchase a RO/DI unit, it will save you money and headaches in the long run.
Besides water quality, protein skimming and kalkwasser dripping will help your water quality and combat the diatoms. They will go away eventually.
Good circulation is also important so that there are no dead spots in the tank. You can blow some of them off the rocks with a turkey baster.


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Old 06/08/2009, 02:45 PM   #4
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yes im using RO water and im tryint to get my skimmer working and it will be up in a couple days. I know this stuff takes time but how long? My corals seem to not open as much because diatoms are growing on the base. Nitrates/Phosphates are 0 and idk what kalkwasser dripping is. I try to suck up as much as i cant when i do water changes.


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Old 06/08/2009, 02:49 PM   #5
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if your tank is new and still cycling you definately should not have any corals in the tank, i would take them back to the place you bought them ASAP


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Old 06/08/2009, 02:52 PM   #6
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its not cycling, the tank is about 2-3 months old. It whent through all the cycles and it was stable for a good month but now its going through a bloom. My corals arent dieing, there just not opening as much.


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Old 06/08/2009, 03:03 PM   #7
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So you're running without a skimmer at the moment?

Where are your nitrates and phosphates?

2 to 3 months is still a rather new setup, so I agree with what the others are saying.


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Old 06/08/2009, 03:57 PM   #8
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nitrates and phosphates-0 but that could mean algae is taking it as soon as its introduced. Yes, im running without a skimmer but i have 45lbs of LR in a small tank which didnt even need a skimmer in the first place. Im pretty sure i dont overfeed. I know my tank isnt "fully cycled" but its cycled enough to introduce corals/fish. I think its just a small bloom on the rock but is there any type of animal that eats this stuff on the sand? Its really getting all over it and none of the animals that are supposed to stir the sand are doing the job. And once again, i cant add a goby.


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Old 06/08/2009, 04:08 PM   #9
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For the LR, maybe a Turbo or two? I don't like the Turbo snails personally, they tend to knock things around. If you have things pretty secure, they might work for you on a temporary basis. For the sand bed, maybe a sand sifting starfish? They are pretty big though. I don't think they'll eat the stuff, but at least churn everything up a bit.

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Old 06/08/2009, 04:34 PM   #10
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if it's a diatom bloom and not cyanobacteria, then your tank is still cycling


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Old 06/08/2009, 04:47 PM   #11
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I think it's still too early for a sand-sifting starfish. It will eat everything it can find in the sand bed, then starve to death. The heavy predation will reduce the effectiveness of your sand bed, then the corpse will produce a bunch of nitrates. Give the sand bed some more time before you add any "sand sifters", whether starfish, sea cucumbers, gobies, or blennies*.

For churning the sand, I recommend nassarius snails. They rest in the sand but come out to find food, so they're not dependent on the inhabitants of the sad bed for their diet.

Pistol shrimp and goby pairs also keep the sand stirred up, but some people get upset when they start bulldozing the tank. Rock piles can be disturbed if they're resting on the sand instead of the glass. Small frags may occasionally wind up deep inside a tunnel, propping up the wall, especially if they were sitting on the sand bed. Even snails are not immune. Not only do their shells make good tunnel supports, but the meat inside is tasty, too. Despite all that, pistol/goby pairs are still great fun to watch.

What kind of blenny do you have? I'm no expert, but I believe many blennies and gobies can coexist. They look similar to us, but I don't know if they look similar enough to each other to stir up the kind of aggression that two gobies or two blennies would cause.

* Note - This specifically refers to "sand sifting blennies"/"sand sifting gobies". Many Gobies and blennies do not rely on sand bed critters for food, and don't require the same waiting time.


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Than vs. Then
If I'm going to spend $50, thEn I'm going to pick out a nice frag.
I spent $50 on a new frag, thEn I drove it home and put it in my tank.
I'd rather spend $50 on a frag thAn a case of tequila.

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Old 06/08/2009, 05:33 PM   #12
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i have a starry blenny that has killed a ygc


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Old 06/09/2009, 10:24 AM   #13
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most tanks under 3months will get a diatom bloom.....no lights for 3 days and it should burn out....if persistant than check your RO water supply


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Old 06/09/2009, 10:53 AM   #14
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lawnmore bleeny will take care of it in 3 days, and don't forget your water change.


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Old 06/09/2009, 10:58 AM   #15
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Re: diatom bloom. how to get rid of it

Quote:
Originally posted by romsoccer12
12 week cycled tank. i just a new rock like 2 weeks ago and it got covered in diatoms. now my sand is covered and a couple rocks are covered. what can clean the sand? i have a bunch of nas. snails and cerith snails that do nothing. i have a brittle star who was supposed to help but hangs out in the rock. i cant get a goby because my blenny will attack it. i have a 30gal tank. doing 10-20% water changes every week.
try nassairus snails


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Old 06/09/2009, 12:16 PM   #16
redhanded77
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like others said, just give it some time. most of my tanks went through periodic diatom blooms for the first couple of months, even after the tank was cycled. sure some snails and hermits or fish might eat some of the diatoms, but the diatoms will wither away on its own. good luck


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