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    Will this return plumbing cause problems during loss of power?

    I noticed two adjacently drilled holes (circumference of my cell phone charger cord) just below the first 90 degree top elbow. No check valves. I guess even if this did prevent a reverse suction into my sump, it ineffectively sends some of the return flow (out of those two holes) directly down...
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    Will this return plumbing cause problems during loss of power?

    I recently purchased a pre-plumbed 90 gallon acrylic tank (with sump/stand) from someone. I noticed that the return line went up through the bottom, back (in the back plumbing housing area). The return pipe goes up near the graded overflow, does a 180 degree turn, goes back down, then goes out...
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    Large pH fluctuations

    Ca is around 400 which I'm not concerned with. 5 community fish, 60 lbs of, some hard and soft coral. Don't remember the volume or refugium but it's an eschopps r100.
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    Large pH fluctuations

    I get my readings from a probe reading. It was recently compared to an API test kit. I use B-Ion 2 part solution and just took the advice of just adding the CA part. My refugium is rated for a 120g tank (mine is 55g). I wonder if my refugium light is insufficient. I think it's a 24w cf. I'll...
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    Large pH fluctuations

    Hello all. I have a 55g reef with LED, protein skimmer, refugium, and berlin sump. All parameters seem great although Ca is somewhat low. . .but my pH goes up to around 8.52 when I turn the lights off at night (9 pm) and down to 8.11 when I turn the lights on (10 am). I've been reluctant to...
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