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11/01/2017, 11:41 PM | #26 |
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I work at a reef store. I measured my water a couple times with different test kits. I'll aim for a lower sg until my tank is fully stocked. This should, over time, get the Mg down.
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11/02/2017, 02:39 AM | #27 | |
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11/02/2017, 03:59 PM | #28 |
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I suspect that a low SG could more harmful than a high magnesium level. I think that keeping the SG at no less than 1.025 is a good idea, although people are successful with somewhat lower levels.
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11/02/2017, 05:37 PM | #29 |
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From personal experience- maintaining a high Mg, Ca and Alk allowed my corals to survive even as my salinity dipped to 1.019... they weren't happy but they didn't die either.
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Failure isn't an option It's a requirement. 660g 380inwall+280smp/surge S/L/Soft/Maxima/RBTA/Clown/Chromis/Anthias/Tang/Mandarin/Jawfish/Goby/Wrasse/D'back. DIY 12' Skimmer ActuatedSurge ConcreteScape |
11/03/2017, 09:30 AM | #30 |
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fwiw. I've run my tanks for years at around 1500 to 1550 ppm for years without discernible negative effects on stony coral growth or inverts ; but a noticeable lack of abiotic calcium carbonate precipitation than at lower levels which I consider a plus.
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Tom Current Tank Info: Tank of the Month , November 2011 : 600gal integrated system: 3 display tanks (120 g, 90g, 89g),several frag/grow out tanks, macroalgae refugia, cryptic zones. 40+ fish, seahorses, sps,lps,leathers, zoanthidae and non photosynthetic corals. |
11/03/2017, 01:41 PM | #31 | |
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11/03/2017, 11:09 PM | #32 |
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1.026 is best, IMO; it's the average for seawater. Note, all animals rely on an internal sg to maintain live sustaining biochemical activity. Invertebrates can't osmo regulate like fish can by drinking and urinating and via their kidney functions; so ,for the animals like corals that don't osmoregulate their internal salinity is highly dependent on the surrounding water;if it's saltier than their internal sg they will loose fluids like a pickle; if it's lower it will flow into them and lower their internal sg. Either way it messes up their homeostasis which is necessary for life .
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Tom Current Tank Info: Tank of the Month , November 2011 : 600gal integrated system: 3 display tanks (120 g, 90g, 89g),several frag/grow out tanks, macroalgae refugia, cryptic zones. 40+ fish, seahorses, sps,lps,leathers, zoanthidae and non photosynthetic corals. |
11/04/2017, 02:19 PM | #33 |
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Yesterday I measured 1.025 so I can safely assume that it's going to be 1.026 by tonight due to evaporation.
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