LFs at SG 1.021

Daddyrawg · 05/27/2018, 09:56 PM

he has his fish all in SG of 1.021.

is this a good thing?

top shelf · 05/27/2018, 10:13 PM

That is based on perspective.

Keeping sg that low cuts the cost of salt which he could use the saving to offer a wider variety of fish.

On the other hand it makes acclimation that much more important because if not done properly the fish could suffer osmatic shock. It could also mask problems like ick.

nereefpat · 05/27/2018, 10:17 PM

Good or bad, don't know... but it is pretty standard for the fish tanks in a store.

It would be bad for inverts, obviously.

Daddyrawg · 05/27/2018, 10:35 PM

yeah he mentioned id have to drip aclimate

thegrun · 05/27/2018, 11:50 PM

While keeping the fish at 1.021 does save a little money on salt, the main reason fish stores keep their salinity in the 1.020 range is that is the salinity that fish are shipped at. Lower salinity reduces the toxicity of ammonia. When fish are shipped from the collection sites around the world to the wholesalers here in the US or Europe they are shipped in lower salinity so the ammonia that builds up in the fish's bag is less toxic and the mortality rate is much lower. Wholesalers do the same thing, they keep their fish in water that has a salinity of about 1.020 and then ship it to the local fish stores in low salinity water. Your local fish store thus keeps the water at 1.021 so they do not need to acclimate the new fish that they are constantly bringing in to their stores.

Uncle99 · 05/28/2018, 07:49 AM

There is also more oxygen disolved in lower SG, making respiration easier and stress lower.

Darth_Tater · 05/29/2018, 11:51 AM

Well I just learned something new. Good to know!

Hastened · 05/29/2018, 02:39 PM

I believe the osmotic pressure to balance salt is much easier on the fish and less stressful.

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lapin · 05/29/2018, 03:19 PM

I keep 1 of my QT tanks at 1.020 when getting new fish. As water evaporates over the 3 days before transfer, the salinity rises. I match the second Qt tank to that. After a few transfers I have it up to 1.025 which is what I keep my main tank at.

homer1475 · 05/30/2018, 04:40 PM

Quote:

Originally Posted by lapin

I keep 1 of my QT tanks at 1.020 when getting new fish. As water evaporates over the 3 days before transfer, the salinity rises. I match the second Qt tank to that. After a few transfers I have it up to 1.025 which is what I keep my main tank at.

Same here.

During TTM I don't replace evap until I'm on like the third transfer where I'm usually pretty close to 1.025.

05/27/2018, 09:56 PM	#1
Daddyrawg Registered Member Join Date: May 2018 Posts: 814	LFs at SG 1.021 he has his fish all in SG of 1.021. is this a good thing?

05/27/2018, 10:13 PM	#2
top shelf Registered Member Join Date: Apr 2014 Location: Pennsylvania Posts: 1,022	That is based on perspective. Keeping sg that low cuts the cost of salt which he could use the saving to offer a wider variety of fish. On the other hand it makes acclimation that much more important because if not done properly the fish could suffer osmatic shock. It could also mask problems like ick. __________________ Knowledge is knowing a tomato is a fruit. Wisdom is not putting it into a fruit salad. Philosophy is wondering if that means ketchup is a smoothie. Current tank info: 45g SCA Cube

05/27/2018, 10:17 PM	#3
nereefpat Registered Member Join Date: Apr 2016 Location: Central Nebraska Posts: 3,190	Good or bad, don't know... but it is pretty standard for the fish tanks in a store. It would be bad for inverts, obviously. __________________ Pat Current Tank Info: 125 in-wall , 40b sump. 6 bulb T5. ASM G2 skimmer. LPS and leathers

05/29/2018, 11:51 AM	#7
Darth_Tater Registered Member Join Date: Feb 2015 Location: Northern Utah Posts: 535	Well I just learned something new. Good to know! __________________ It's probably in your best interest to ignore most of my advice.

05/29/2018, 03:19 PM	#9
lapin Registered Member Join Date: Aug 2017 Location: Austin Posts: 801	I keep 1 of my QT tanks at 1.020 when getting new fish. As water evaporates over the 3 days before transfer, the salinity rises. I match the second Qt tank to that. After a few transfers I have it up to 1.025 which is what I keep my main tank at. __________________ Tank sizes, 2-10's a 55 and one that's about 500gal Current Tank Info: Interior decorating happening

05/27/2018, 10:35 PM	#4
Daddyrawg Registered Member Join Date: May 2018 Posts: 814	yeah he mentioned id have to drip aclimate

05/27/2018, 11:50 PM	#5
thegrun Registered Member Join Date: Dec 2008 Location: Garden Grove, Ca Posts: 17,023	While keeping the fish at 1.021 does save a little money on salt, the main reason fish stores keep their salinity in the 1.020 range is that is the salinity that fish are shipped at. Lower salinity reduces the toxicity of ammonia. When fish are shipped from the collection sites around the world to the wholesalers here in the US or Europe they are shipped in lower salinity so the ammonia that builds up in the fish's bag is less toxic and the mortality rate is much lower. Wholesalers do the same thing, they keep their fish in water that has a salinity of about 1.020 and then ship it to the local fish stores in low salinity water. Your local fish store thus keeps the water at 1.021 so they do not need to acclimate the new fish that they are constantly bringing in to their stores.

05/28/2018, 07:49 AM	#6
Uncle99 Crab Free Zone Join Date: Sep 2017 Location: Ontario, Canada Posts: 2,906	There is also more oxygen disolved in lower SG, making respiration easier and stress lower.

05/29/2018, 02:39 PM	#8
Hastened Registered Member Join Date: Jul 2015 Posts: 18	I believe the osmotic pressure to balance salt is much easier on the fish and less stressful. Sent from my ONEPLUS A5010 using Tapatalk