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| | #1 (permalink) |
| Pistol Shrimp | Dont know if thers a answer to this question or I'm just thinking crazy. Is there any mathematical equation that can figure out the water displacement lost by added pounds. Allways wondered what the water loss would be or amount to with a certain amount of pounds (LR or LS) in there.
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| | #2 (permalink) |
| They misunderestimated me ![]() | Re: RATIO for LB vs GALLONS. If you know the density of the rock you could calculate it, but it wouldn't be exact because of the variables in the rock structure.
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| | #3 (permalink) |
| Pistol Shrimp | Re: RATIO for LB vs GALLONS. Ahhh got cha, Ya i figured even If you knew the exact lb you could get an accurate answer. Thanks for the reply.
__________________ And I thought buying a puppy would be to expensive! http://www.reefsanctuary.com/forums/...90g-build.html![]() _____________________________________________ TANK SPECS: AGA 90RR Current Nova Extreme T5HO (216W) Ocean Runner 2600 (1700gph) Skimmer CSS 220 2 Hydor Koralia 4(1200gph) Sump 29g WWW.PBMAS.ORG Check out more pics of my build here In the gallery. |
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| | #5 (permalink) |
| Neon dottyback | Re: RATIO for LB vs GALLONS. Actually there is no perfect way to calculate this because LR varies in density quite a bit. However, if this is a new tank, and it's being started with SW in it, and the tank is full of water with no LR, it's easy to figure out. As you add rock, how much water did you need to remove? You could also get a rough calculation by doing the same thing using a few representative pieces of rock and a full bucket, and measuring the water displaced, and then calculating the ratio between the rock tested and the amount of rock in the tank verses the amount of water displaced. I should point out that you seldom, if ever, really need to get that accurate. I just usually figure that my 120 gal tank has about 30 - 40 gal of water displaced by LR and sand. |
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| | #6 (permalink) |
| Reef Addict (hopeless) ![]() | Re: RATIO for LB vs GALLONS. Wow that's a hefty displacement Davey! That comes out to 25-30% right? Now that I am sitting here looking that's actually probably a very fair number to work with. Well there goes all of my calculations for feeding, dosing and everything else Sounds like a good number to use as a baseline. Of course some rock are MUCH more dense than others but hey, you gotta start somewhere!!Allen ![]()
__________________ Allen Allen's testimonial . . ."Let Me help you help YOURSELF" (Click Here)with a SW set up there is one basic fundamental rule that we ALL should follow When in doubt... wait it out. This means take it slow and let the tank "develop" and don't rush it. Time is your friend ![]() Ask me about how to increase your REEF budget without going without FOOD!! ![]() Big Al's 10g Julie's (BigAl's Gal) 6g NanoCube BigAl's Slow 90g Tank Chronicle Allens OFFICE 12g Nano-Reef Reef Balls & Cakes Debt Free & Change your Family Tree!! |
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| | #7 (permalink) | |
| Neon dottyback | Re: RATIO for LB vs GALLONS. Quote:
Kind of makes me want a larger tank now! | |
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