Reef Central Online Community

Home Forum Here you can view your subscribed threads, work with private messages and edit your profile and preferences View New Posts View Today's Posts

Find other members Frequently Asked Questions Search Reefkeeping ...an online magazine for marine aquarists Support our sponsors and mention Reef Central

Go Back   Reef Central Online Community > General Interest Forums > The Reef Chemistry Forum
Register Blogs FAQ Calendar Mark Forums Read

Notices

User Tag List

Reply
Thread Tools
Old 09/07/2019, 08:45 AM   #1
Johnic
Registered Member
 
Johnic's Avatar
 
Join Date: Jun 2004
Location: SoCal
Posts: 1,058
Specific gravity in tank is 1.028

I havenít checked in a while but did today and noticed itís 1.028.
Is this too high ? If so how should I drop it?

I use Reef Crystals and also noticed how much brown stuff is in the mixing 50 gal container. Corals look great but should I clean the mixing tub ?? I hate to screw up a good thing right now. All is good with the corals.


__________________
75 Lee Mar Peninsula Tank,Reef Octo Elite 150,Custom Advanced Acrylic Sump,Red Dragon Pump,(2) XR15 Pro, Clear Water ATS CW-50,Alkatronic,GHL Doser 2.1

Last edited by Johnic; 09/07/2019 at 09:10 AM.
Johnic is offline   Reply With Quote
Old 09/07/2019, 09:15 AM   #2
ThRoewer
Registered Member
 
ThRoewer's Avatar
 
Join Date: Jan 2015
Location: Fremont, CA
Posts: 8,832
I had tanks at 1.040 and none of the inhabitants looked as if they would mind it. Added RO to adjust it to 1.026 and again no fish, shrimp, or coral took offense.
Things like that actually happen in the wild quite often. In tide pools, lagoons, atolls, and other bodies of water that get frequently or occasionally cut off from the ocean sun and wind can cause significant evaporation and drive the salinity up within hours. How extreme it gets depends on the size of the water mass and the duration it is cut off from the ocean.
When the connection is reestablish by the incoming tide or a spring tide, the incoming ocean water adjusts the salinity down again.
Most lifeforms in the ocean can handle quite a bit of variation in salinity.

BTW 1.028 is just about right for a Red Sea biotope.


Sent from my XT1254 using Tapatalk


__________________
Pairs: 4 percula, 3 P. kauderni, 3 D. excisus, 1 ea of P. diacanthus, S. splendidus, C. altivelis O. rosenblatti, D. janssi, S. yasha & a Gramma loreto trio
3 P. diacanthus. 2 C. starcki

Current Tank Info: 200 gal 4 tank system (40x28x24 + 40B + 40B sump tank + 20g refugium) + 30x18x18 mixed reef + 20g East Pacific biotop + 20g FW +...
ThRoewer is offline   Reply With Quote
Old 09/07/2019, 09:17 AM   #3
Johnic
Registered Member
 
Johnic's Avatar
 
Join Date: Jun 2004
Location: SoCal
Posts: 1,058
Gotcha. I guess Iíll leave it but as I mix new Salk Iíll drop it the incoming down to bring the tank down.

Should I clean my mixing tub ?


Sent from my iPhone using Tapatalk


__________________
75 Lee Mar Peninsula Tank,Reef Octo Elite 150,Custom Advanced Acrylic Sump,Red Dragon Pump,(2) XR15 Pro, Clear Water ATS CW-50,Alkatronic,GHL Doser 2.1
Johnic is offline   Reply With Quote
Old 09/07/2019, 09:44 AM   #4
Vinny Kreyling
Registered Member
 
Vinny Kreyling's Avatar
 
Join Date: Nov 2002
Location: Miller Place, NY
Posts: 6,003
Can't hurt to have a clean tub.
Do it when you have time.


__________________
250 gallon mixed reef, 2 Reefbreeder's Photon V 2, RD 3 Speedy 80 Watt, DAS EX-3 Skimmer, MTC mini cal, 2-3/4" Sea Swirls, Aquacontroller & 6 Tunze pumps.
Vinny Kreyling is online now   Reply With Quote
Old 09/07/2019, 09:52 AM   #5
Johnic
Registered Member
 
Johnic's Avatar
 
Join Date: Jun 2004
Location: SoCal
Posts: 1,058
Quote:
Originally Posted by Vinny Kreyling View Post
Can't hurt to have a clean tub.
Do it when you have time.


Ya.
Soooo
Iíll confess. I put trust in my Milwaukee digital specific gravity device but I havenít calibrated in some time and it was off by 1.002. Uggggg. I tested with my Sybon old school refract and the tank is 1.026.



Sent from my iPhone using Tapatalk


__________________
75 Lee Mar Peninsula Tank,Reef Octo Elite 150,Custom Advanced Acrylic Sump,Red Dragon Pump,(2) XR15 Pro, Clear Water ATS CW-50,Alkatronic,GHL Doser 2.1
Johnic is offline   Reply With Quote
Old 09/07/2019, 11:01 AM   #6
Uncle99
Crab Free Zone
 
Uncle99's Avatar
 
Join Date: Sep 2017
Location: Ontario, Canada
Posts: 2,723
I stopped using RC because of the "brown stuff".
Using Red Sea Pro, mixes clean, barrel stays clean, I hate cleaning buckets.
Worth the extra cash IMM, Tropic Marin Pro mixed fast and clean as well.


Uncle99 is offline   Reply With Quote
Old 09/07/2019, 11:59 AM   #7
Johnic
Registered Member
 
Johnic's Avatar
 
Join Date: Jun 2004
Location: SoCal
Posts: 1,058
Quote:
Originally Posted by Uncle99 View Post
I stopped using RC because of the "brown stuff".

Using Red Sea Pro, mixes clean, barrel stays clean, I hate cleaning buckets.

Worth the extra cash IMM, Tropic Marin Pro mixed fast and clean as well.


Ya I agree. But I hate to change something thatís working and corals look good. Changing salts is a big move. I get the rc on Amazon delivery to front door to for great price.


Sent from my iPhone using Tapatalk


__________________
75 Lee Mar Peninsula Tank,Reef Octo Elite 150,Custom Advanced Acrylic Sump,Red Dragon Pump,(2) XR15 Pro, Clear Water ATS CW-50,Alkatronic,GHL Doser 2.1
Johnic is offline   Reply With Quote
Old 09/07/2019, 01:18 PM   #8
bertoni
RC Mod
 
Join Date: Mar 2002
Location: Mountain View, CA, USA
Posts: 88,064
I'd probably lower the SG to 1.0264, but I agree that 1.028 is safe enough. For a 75 g tank, maybe replacing Ĺ-1 g of tank water with fresh RO/DI once a day for a while should fix the situation quickly enough.


__________________
Jonathan Bertoni
bertoni is offline   Reply With Quote
Old 09/07/2019, 01:29 PM   #9
ThRoewer
Registered Member
 
ThRoewer's Avatar
 
Join Date: Jan 2015
Location: Fremont, CA
Posts: 8,832
Quote:
Originally Posted by Uncle99 View Post
... Red Sea Pro, mixes clean, barrel stays clean, ...
That's not my experience with Red Sea salt. If you don't clean the barrel every few mixes it encrusts quite a bit.
Tropic Marine is probably the cleanest, but definitely not the cheapest.


Sent from my XT1254 using Tapatalk


__________________
Pairs: 4 percula, 3 P. kauderni, 3 D. excisus, 1 ea of P. diacanthus, S. splendidus, C. altivelis O. rosenblatti, D. janssi, S. yasha & a Gramma loreto trio
3 P. diacanthus. 2 C. starcki

Current Tank Info: 200 gal 4 tank system (40x28x24 + 40B + 40B sump tank + 20g refugium) + 30x18x18 mixed reef + 20g East Pacific biotop + 20g FW +...
ThRoewer is offline   Reply With Quote
Old 09/07/2019, 02:29 PM   #10
Johnic
Registered Member
 
Johnic's Avatar
 
Join Date: Jun 2004
Location: SoCal
Posts: 1,058
Quote:
Originally Posted by ThRoewer View Post
That's not my experience with Red Sea salt. If you don't clean the barrel every few mixes it encrusts quite a bit.
Tropic Marine is probably the cleanest, but definitely not the cheapest.


Sent from my XT1254 using Tapatalk


I used to use tropic marine and itís def not cheap but very good.


Sent from my iPhone using Tapatalk


__________________
75 Lee Mar Peninsula Tank,Reef Octo Elite 150,Custom Advanced Acrylic Sump,Red Dragon Pump,(2) XR15 Pro, Clear Water ATS CW-50,Alkatronic,GHL Doser 2.1
Johnic is offline   Reply With Quote
Old 09/08/2019, 02:55 PM   #11
hkgar
Registered Member
 
hkgar's Avatar
 
Join Date: Oct 2002
Location: Dewitt MI
Posts: 4,868
Quote:
Originally Posted by Johnic View Post
Ya.
Soooo
Iíll confess. I put trust in my Milwaukee digital specific gravity device but I havenít calibrated in some time and it was off by 1.002. Uggggg. I tested with my Sybon old school refract and the tank is 1.026.



Sent from my iPhone using Tapatalk
Why do you think the Sybon is correct? Have you calibrated it?


__________________
Gary


180 gallon, 30 gallon sump, 8 80W ATI T5's, MTC MVX 36 Skimmer, Apex controller Aquamaxx T-3 CaRx

Current Tank Info: 2 Barred Rabbitfish, Yellow/Purple, McMaster Fairy, Possum, 2 Leopard Wrasses, Kole, & Atlantic Blue Tangs, 2 Percula Clown, 4 PJ and 2 Banggai Cardinalfish , Swallowtail and Bellus, Flame, Coral Beauty Angels
hkgar is online now   Reply With Quote
Old 09/08/2019, 02:56 PM   #12
Johnic
Registered Member
 
Johnic's Avatar
 
Join Date: Jun 2004
Location: SoCal
Posts: 1,058
Quote:
Originally Posted by hkgar View Post
Why do you think the Sybon is correct? Have you calibrated it?


Yes. And I calibrated the digital one too now.


Sent from my iPhone using Tapatalk


__________________
75 Lee Mar Peninsula Tank,Reef Octo Elite 150,Custom Advanced Acrylic Sump,Red Dragon Pump,(2) XR15 Pro, Clear Water ATS CW-50,Alkatronic,GHL Doser 2.1
Johnic is offline   Reply With Quote
Old 09/09/2019, 09:08 AM   #13
jd371
Registered Member
 
jd371's Avatar
 
Join Date: Jun 2015
Location: Long Island
Posts: 612
Quote:
Originally Posted by Johnic View Post
Gotcha. I guess Iíll leave it but as I mix new Salk Iíll drop it the incoming down to bring the tank down.

Should I clean my mixing tub ?


Sent from my iPhone using Tapatalk
I use IO and clean the Brute trash can after every 5th mix. I'd switch to something cleaner but at $35 for a 200g box I'd rather take the 20 minutes to clean than spend a lot more money for a clean trash can.


jd371 is offline   Reply With Quote
Old 09/09/2019, 09:40 PM   #14
bertoni
RC Mod
 
Join Date: Mar 2002
Location: Mountain View, CA, USA
Posts: 88,064
Oops, missed the part about the mixing tub. You can clean it when it gets gunky, but the precipitates are unlikely to cause any problems. It's mostly an esthetic issue.


__________________
Jonathan Bertoni
bertoni is offline   Reply With Quote
Old 09/09/2019, 09:51 PM   #15
Johnic
Registered Member
 
Johnic's Avatar
 
Join Date: Jun 2004
Location: SoCal
Posts: 1,058
Quote:
Originally Posted by bertoni View Post
Oops, missed the part about the mixing tub. You can clean it when it gets gunky, but the precipitates are unlikely to cause any problems. It's mostly an esthetic issue.


Gotcha. I havenít cleaned it for years and it seems that it doesnít affect the tank. One thing I realize in reef keeping is.... leave well enough alone.

Still wonder what the heck that stuff is.


Sent from my iPhone using Tapatalk


__________________
75 Lee Mar Peninsula Tank,Reef Octo Elite 150,Custom Advanced Acrylic Sump,Red Dragon Pump,(2) XR15 Pro, Clear Water ATS CW-50,Alkatronic,GHL Doser 2.1
Johnic is offline   Reply With Quote
Old 09/11/2019, 02:38 PM   #16
bertoni
RC Mod
 
Join Date: Mar 2002
Location: Mountain View, CA, USA
Posts: 88,064
It might be a mix of calcium carbonate and some organics, but that's just a guess. The calcium carbonate would fizz if an acid like vinegar were added.


__________________
Jonathan Bertoni
bertoni is offline   Reply With Quote
Old 09/17/2019, 06:40 PM   #17
Uncle99
Crab Free Zone
 
Uncle99's Avatar
 
Join Date: Sep 2017
Location: Ontario, Canada
Posts: 2,723
Quote:
Originally Posted by ThRoewer View Post
That's not my experience with Red Sea salt. If you don't clean the barrel every few mixes it encrusts quite a bit.
Tropic Marine is probably the cleanest, but definitely not the cheapest.


Sent from my XT1254 using Tapatalk
Truly happy with RedSea, have not cleaned get barrel in over a year now as it does not require it.

Then again, I mix only what is needed and deploy in 24 hours, I don't need to store salt water, since I have not stored, maybe this is where it encrusts? Strange, never encountered this problem.

I did note that parameters became very predictable with Red Sea, each and every batch I make mixes clean, and so, so on point, no variances in over 2 years now.

I am sure everyone has their favorite, one thing I have learned is you get what you pay for for most things, most, not all.


Uncle99 is offline   Reply With Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -6. The time now is 09:07 AM.


TapaTalk Enabled

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2019 Axivo Inc.
Use of this web site is subject to the terms and conditions described in the user agreement.
Reef CentralTM Reef Central, LLC. Copyright ©1999-2014
User Alert System provided by Advanced User Tagging v3.3.0 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.