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Old 10/27/2018, 06:01 PM   #1
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hipertec's Avatar
Join Date: Jul 2003
Location: Southern California (Inland Empire)
Posts: 1,237
Jbj 45G rimless tank--3 small holes on black wall?

Just picked up a jbj 45G rimless AIO. Before I start to fill the tank, on the plastic black wall, there are 3 small holes that goes to the back chambers from the main front tank area. On hole on right, center, and left area about 1/3 up from the bottom.

Should I plug these 3 holes from keeping the water from the main tank going go the back? Best way to plug these holes up if it's a good idea? Not sure why they are there. To me, it just keeps the water from going thru the top areas and thru the pumps.

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Old 10/27/2018, 06:05 PM   #2
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I could be weong but maybe they are for the return pump

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Old 10/27/2018, 06:22 PM   #3
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Join Date: Sep 2018
Location: Massachusetts
Posts: 16
Could you post a picture of the holes?
They honestly just sound like a part of the overflow but perhaps not.

We out here loving fish

Current Tank Info: 32 Gallon Biocube - some euphyllia corals ...
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