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#1
02-17-2015, 04:53 PM
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The problem isn't in the sump. The skimmer is already efficiently oxygenating there. It is when the return pump is set low and the water being returned to the display tank is reduced that is the concern.
Last edited by Samw; 02-17-2015 at 05:02 PM. 
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#2
02-18-2015, 05:50 AM
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Mr MI may be developing Ich, not sure yet. I guess I'll know tomorrow night, at which point I'll treat the tank with CP.
Still not eating nori, which would help relieve stress, I think.
__________________
Brad
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#3
02-18-2015, 09:44 PM
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Interesting thread on oxygenation....
I suppose I should comment on my MI and his feeding habits to keep the thread on track before I get into the oxygenation. At first my MI was all over mysis and then slowly switched him to seaweed extreme pellets. Once he was eating well I slowly weened him off the seaweed and got him on 2mm nls. Since then I feed a mix of seaweed extreme, nls, and nori which has recently become his fav. He lives with an Achilles who is an ich machine but seems to be healthy enough not to share the outbreak. Had him over 6 months and he is growing so I'm optimistic on his success. So back to oxygenation.... I'm going to turn my skimmer off to see how my emperor, golden, and MI fair with lower oxygenation. I'll keep you guys posted!
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#4
02-18-2015, 10:00 PM
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Quote:
__________________
Brad
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#6
02-18-2015, 10:25 PM
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If the MI isn't eating yet you need to bring out the fish crack... Pacifica Plankton. I kept a MI alive with it for 3.5yrs. Big, fat and healthy.
Speaking of oxygen demand I just got back from Hanauma Bay where I observed lots of MI pairs and Achilles pairs all in 4 to 8 feet of water and not a lot of current. Even got side swiped by about 300+ convict tangs as they raided the reef where an Achilles pair were living. Their territory was only about 4' by 6' and they were about 7" long. Think I need an Achilles in my 4' by 8' coral tanks. :-)
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www.oceanfreshaquarium.com/foz-down.html - Foz Down - an easy way to eliminate algae outbreaks caused by Phosphate and bring back the fun of reef keeping.
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#8
02-18-2015, 11:00 PM
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An hour in and I see no noticeable change in fish energy.
Threw some nori in for fun and it was the usual frenzy. Total volume is over 500 gallons so I'll give it another couple hours. My sump turnover is around 8x per hour which could be a significant source of oxygenation but I would assume that with the skimmer off the DO would drop some...
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#9
02-18-2015, 10:14 PM
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20 minutes in and no noticeable difference in fish health.
-emperor is hanging below the feeder ring -golden comes and goes through the rocks feeding on whatever it is as usual -moorish is hanging out in th surf picking on anthias as usual. I'll turn down the vortechs to 70%
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#10
02-18-2015, 10:17 PM
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Quote:
Not really a control, but at least gives this topic a better sample size to draw a conclusion... The funny thing is that if somebody with 10 posts, regardless of their actual experience, tried to say that a certain genus of fish was dying in their tank and the ONLY reason could be low oxygen, this board would be all over them telling them to test this, test that and double check everything... That or condescend for buying a fish that is considered high risk and unlikely to survive in the first place. Last edited by gobytron; 02-18-2015 at 10:31 PM.
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I may have some plankton in the freezer though, I'll try that tonight.
Hybrid Mode
