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UDCatFish

Aquarium Advice Apprentice
Joined
Jun 27, 2015
Messages
30
Location
nevada
I have an Aqueon HOB Power Filter 50. There is quite a bit of grayish, pinkish stuff on my biological grid. I assume this is the "good bacteria" growing like it is supposed to. However, my nitrate levels have gone up recently. Ammonia and Nitrite both at 0. My question is can I or should I wash off the "stuff" in tank water, or should I just leave it alone and do water changes? Any advice is appreciated. I have an Aqueon 36g bowfront with 4 UDC's, 6 Zebra Danios, and 10 Golden Cloud Minnows. Not planted
 
Rinse off bio media /grid in tank water during next water change.
It should be no problem.
Many bio medias can become nitrate factories if not rinsed occasionally.
 
Thank you so much for our prompt reply. I though it would be okay but wanted an experienced person's opinion first. Thanks again
 
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