Strange Whit Cridders - Tropical Fish Keeping - Aquarium fish care and resources

 
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post #1 of 4 Old 02-19-2008, 03:03 AM Thread Starter
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Strange Whit Cridders

Good Morning . Tonight i noticed some White Cridders craling on my live rock. Lots of em, When the moon lights came on and seem to swim to the moon light . any ideas what they are? and are they harmful,and or is there a fish i can get or something to eat them?

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carl.

Vistit Burch Aquarium CAL.
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post #2 of 4 Old 02-20-2008, 01:00 AM
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Sounds like copepods, and no, they won't hurt anything. They are a sign of a healthy tank. They are a primary food source for fishes like the mandarin, but that is also dependednt on how large the tank is and how heavily populated it is with the copepods. They will eat algaes and other scraps in your tank, it's quite common to see them on the glass.
If you tell us what your set up is, how big, whats in it, etc, maybe we can suggest something for you...

Dawn Moneyhan
Aquatics Specialist/Nutritionist
Juneau, WI
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post #3 of 4 Old 02-25-2008, 11:36 AM Thread Starter
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Thanks. Its a 40 Gal w/ 30LBS of live rock Fluval 305 just running black carbon and Phoshate Sea clone 100 Putting in as much bubbles in the Chamber as i can w/out putting em in the Tank 2 power sweep Power heads The tank has been up and running for about 9 months. Water Readings are Gravity 22.000 Ammonia 0.00 PPM Nitrate 15PPM Ph 8.2

What i have inside are 4 Crabs 1 Pistol Shrimp, 1 clown 1 Scorpios Tang And 1 Sailfin Tang.

Carl.

Vistit Burch Aquarium CAL.
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post #4 of 4 Old 02-25-2008, 12:36 PM
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Well, one thing I can suggest with that stocking list is to start searching for a larger tank soon. Scopas tangs average about 8 inches around and the sailfin averages 14 - 16 inches full grown. For those fish you'll need over 100 gallons eventually.

Can you post a nitrite reading? Calcium reading? I'm not sure I understood "Gravity 22.00" Were you referring to spg/salinity? What type of instrument did you use to measure it? For what you're keeping an ideal spg/salinity reading would be 1.023 - 1.025

Dawn Moneyhan
Aquatics Specialist/Nutritionist
Juneau, WI
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