how much salt?

Drake1 · 09/08/2007, 10:11 PM

I have 150 gallons that are reading 30 PPT. I would like to bring it up to 35 how much salt would i need to add? water temp sits around 81 degrees
thanks jeff

T Man · 09/08/2007, 10:37 PM

35 ppt would give a specific gravity of about 1.026, recommended specific gravity is 1.021-1.023 for marine fish and 1.021-1.024 for marine invertebrates. If your tank is 16 years old, why change the salinity this late in the game? T

ashtonmitchell · 09/08/2007, 10:54 PM

Quote:

Originally posted by T Man
35 ppt would give a specific gravity of about 1.026, recommended specific gravity is 1.021-1.023 for marine fish and 1.021-1.024 for marine invertebrates. If your tank is 16 years old, why change the salinity this late in the game? T

agreed.

Aquarist007 · 09/09/2007, 01:22 PM

Quote:

Originally posted by T Man
35 ppt would give a specific gravity of about 1.026, recommended specific gravity is 1.021-1.023 for marine fish and 1.021-1.024 for marine invertebrates. If your tank is 16 years old, why change the salinity this late in the game? T

I am sorry to differ--esp with your experience--but the reported ideal salinity --by the norm of experienced on this site is .026 for reef tanks.

Aquarist007 · 09/09/2007, 01:24 PM

Quote:

Originally posted by Drake1
I have 150 gallons that are reading 30 PPT. I would like to bring it up to 35 how much salt would i need to add? water temp sits around 81 degrees
thanks jeff

I would do it slowly and use .026 salinity in my top- ups for evaporation instead of just r/o water for the next while.

T Man · 09/09/2007, 03:02 PM

Quote:

Originally posted by capn_hylinur
I am sorry to differ--esp with your experience--but the reported ideal salinity --by the norm of experienced on this site is .026 for reef tanks.

My experience has lead me to believe in what the salt manufactures recommend.....specifically Oceanic.

I've read the articles and seen a handful of TOTM's with 1.026 here at RC however raising the salinity in a sixteen year old tank IMO is not a good idea. Besides, if the tank is sixteen years old, would'nt you think the owner would know how much salt it takes to raise the salinity?

wrott · 09/09/2007, 03:11 PM

Even after 16yrs his corals could be healthier at 1.026 sg.
I would raise it over a few days, measuring after each addition of salt.

Aquarist007 · 09/09/2007, 03:25 PM

I've pm'd Boomer----he'll have some informed thoughts on this level.

T Man · 09/09/2007, 04:05 PM

Quote:

Originally posted by capn_hylinur
I've pm'd Boomer----he'll have some informed thoughts on this level.

Success on any level in reef keeping is the ability to take the information researched and make your OWN decisions for optimum results. You seem to be ignoring my original question to Drake1.............

"If your tank is 16 years old, why change the salinity this late in the game?".

So you do not agree with my posted recommendations, okay that is what this board is for. I am also positive that you know the same thing as I about Drake1's tank- nothing! That is why I asked the question.

Boomer · 09/09/2007, 04:21 PM

We try to keep it at normal reef SG, which is 33-35 ppt or 1.024- 1.026. Std seawater is 35 ppt or 1.0264. One thing to be concerned about is how are you measuring it . The other is that many books, articles, websites and even salt manufactures often get confused about Sg vs Density. The are not the same. D DOES NOT = Sg. That Red Sea package looks like D and not Sg. At 35 ppt, D = 1.023 and Sg = 1.0264. The other issue is that many do not know it but go by Sg when a hydromneter is calibrated to 15 C, corrected to 77F which also may be what they are using, where 1.024 = 1.026 if you correct it. The floating hydromerters we use are not 15 C but 25C (77 F) so needs no real correction. 35 ppt = 1.0264 @ 77F or 1.025 @ 82 F.

You guys can play with this for SG.

http://www.reefkeeping.com/issues/20...conversion.htm

Remember temp is only a concern with floating hydrometers and is what most salt manufactures fo by. Using a refract or a temp corrected IO "swing-Arm", then 35 ppt = 1.026 at almost any temp within the range of 65 - 90 degrees. Most refrats are temp corrected so it is also not an issue . All refracts should be recalibrated with the PinPoint 53 mS solution as they are set from the factory to a NaCl soltuion which is not the same as Seawater.

Here is a guide

Reef Aquarium Water Parameters
http://www.reefkeeping.com/issues/2004-05/rhf/index.htm

Drake1 · 09/09/2007, 04:44 PM

to be honest after 16 years i have had lack luster growth other then my softies and coraline, I have 8 inch selves of coraline but my hard corals never grows to the point where it can be fraged. I have just recently got a refract meter so i want to try something different, and yes i do have 3, 250 W 14,000K halides
Jeff

T Man · 09/09/2007, 05:09 PM

Howdy Drake1, "hard corals" do better in a higher salinity, however there could be some other factor that could be holding the growth back like the toxins released by your softies. IME they do not mix well for prolonged periods of time, a common symptom of "chemical warfare" is no noticable growth of the undominated species- it might be something to look into.
Could you post some pictures of your system, I would like to see your livestock.......it's not every day that one gets to see an older tank such as yours!

Boomer · 09/09/2007, 08:20 PM

Drake

I would like to bring it up to 35 how much salt would i need to add?

I forgot to post it

Salinity Adjustment Calculator
http://www.saltyzoo.com/SaltyCalcs/SalinityAdjust.php

I forgot again

DO NOT type in SG in any of the boxes, even though it says SG or ppt. You will get funny answers. Use only ppt.

Aquarist007 · 09/10/2007, 07:34 AM

Quote:

Originally posted by T Man
Success on any level in reef keeping is the ability to take the information researched and make your OWN decisions for optimum results. You seem to be ignoring my original question to Drake1.............

"If your tank is 16 years old, why change the salinity this late in the game?".

So you do not agree with my posted recommendations, okay that is what this board is for. I am also positive that you know the same thing as I about Drake1's tank- nothing! That is why I asked the question.

T-man, I wasn't ignoring the question---I thought for my learning and understanding that we should be the salt values clarified first.- nor was I trying to be disrespectful to your experience.

I agree what you are saying--- but as one old dog myself --you are never to old to learn new tricks

I'd like to see pics of that tank too

09/08/2007, 10:11 PM	#1
Drake1 Registered Member Join Date: Feb 2001 Location: lakeville,mn Posts: 530	how much salt? I have 150 gallons that are reading 30 PPT. I would like to bring it up to 35 how much salt would i need to add? water temp sits around 81 degrees thanks jeff

09/08/2007, 10:37 PM	#2
T Man ~PPPPPPP~ Join Date: Jan 2006 Location: Emerald City Posts: 1,045	35 ppt would give a specific gravity of about 1.026, recommended specific gravity is 1.021-1.023 for marine fish and 1.021-1.024 for marine invertebrates. If your tank is 16 years old, why change the salinity this late in the game? T __________________ He that can have patience can have what he will. ~ Benjamin Franklin Current Tank Info: click the "TzFuture" folder in my profile

09/09/2007, 03:11 PM	#7
wrott Registered Member Join Date: Mar 2004 Location: Alabama Posts: 2,912	Even after 16yrs his corals could be healthier at 1.026 sg. I would raise it over a few days, measuring after each addition of salt. __________________ OK, but where does the meat go! ------------------------------------------------ 120g SPS, 125g mix, 56g FOWLR, 20g qt

09/09/2007, 03:25 PM	#8
Aquarist007 Registered Member Join Date: Apr 2007 Location: Hamilton, Canada Posts: 28,240 Blog Entries: 1	I've pm'd Boomer----he'll have some informed thoughts on this level. __________________ I prefer my substrates stirred but not shaken Current Tank Info: 150gal long mixed reef, 90gal sump, 60 gal refugium with 200 lbs live rock

09/09/2007, 08:20 PM	#13
Boomer Bomb Technician (EOD) Join Date: Aug 2002 Location: Duluth, Minnesota Posts: 11,842	Drake I would like to bring it up to 35 how much salt would i need to add? I forgot to post it Salinity Adjustment Calculator http://www.saltyzoo.com/SaltyCalcs/SalinityAdjust.php I forgot again DO NOT type in SG in any of the boxes, even though it says SG or ppt. You will get funny answers. Use only ppt. __________________ If you See Me Running You Better Catch-Up Seawater Chemistry, Geology, ID Marine Life, Collecting Science Books, Explosives Technology, Audiophile An explosion can be defined as a loud noise, accompanied by the sudden going away of things, from a place where they use to be. Last edited by Boomer; 09/09/2007 at 08:48 PM.

09/09/2007, 04:21 PM	#10
Boomer Bomb Technician (EOD) Join Date: Aug 2002 Location: Duluth, Minnesota Posts: 11,842	We try to keep it at normal reef SG, which is 33-35 ppt or 1.024- 1.026. Std seawater is 35 ppt or 1.0264. One thing to be concerned about is how are you measuring it . The other is that many books, articles, websites and even salt manufactures often get confused about Sg vs Density. The are not the same. D DOES NOT = Sg. That Red Sea package looks like D and not Sg. At 35 ppt, D = 1.023 and Sg = 1.0264. The other issue is that many do not know it but go by Sg when a hydromneter is calibrated to 15 C, corrected to 77F which also may be what they are using, where 1.024 = 1.026 if you correct it. The floating hydromerters we use are not 15 C but 25C (77 F) so needs no real correction. 35 ppt = 1.0264 @ 77F or 1.025 @ 82 F. You guys can play with this for SG. http://www.reefkeeping.com/issues/20...conversion.htm Remember temp is only a concern with floating hydrometers and is what most salt manufactures fo by. Using a refract or a temp corrected IO "swing-Arm", then 35 ppt = 1.026 at almost any temp within the range of 65 - 90 degrees. Most refrats are temp corrected so it is also not an issue . All refracts should be recalibrated with the PinPoint 53 mS solution as they are set from the factory to a NaCl soltuion which is not the same as Seawater. Here is a guide Reef Aquarium Water Parameters http://www.reefkeeping.com/issues/2004-05/rhf/index.htm

09/09/2007, 04:44 PM	#11
Drake1 Registered Member Join Date: Feb 2001 Location: lakeville,mn Posts: 530	to be honest after 16 years i have had lack luster growth other then my softies and coraline, I have 8 inch selves of coraline but my hard corals never grows to the point where it can be fraged. I have just recently got a refract meter so i want to try something different, and yes i do have 3, 250 W 14,000K halides Jeff

09/09/2007, 05:09 PM	#12
T Man ~PPPPPPP~ Join Date: Jan 2006 Location: Emerald City Posts: 1,045	Howdy Drake1, "hard corals" do better in a higher salinity, however there could be some other factor that could be holding the growth back like the toxins released by your softies. IME they do not mix well for prolonged periods of time, a common symptom of "chemical warfare" is no noticable growth of the undominated species- it might be something to look into. Could you post some pictures of your system, I would like to see your livestock.......it's not every day that one gets to see an older tank such as yours!