Internet fish buying.. - Page 2

kismetsh · 03/02/2013, 03:04 PM

Quote:

Originally Posted by Deinonych

+1

LiveAquaria ships theirs in a SG of 1.017

Is this always the case? I will probably be acquiring all of my fish from them and if this is their "standard" SG I'll go ahead and set my QT there.

What about their invert tanks?

hogfanreefer · 03/02/2013, 06:09 PM

Quote:

Originally Posted by Sk8r

Low salinity kills ich: it's a treatment, when applied at 1.009 over 4 weeks. And fish can have it a little lower than a reef. But it also means if they've been careless and keep putting new fish into the same tank, you could see ich develop as you bring the salinity up: if that happens, a) don't use that dealer again and b) treat the ich in that qt tank, and thank your lucky stars it didn't get loose in your display tank! Stores that keep way low salinity in their sale tanks---it just makes me nervous about what might develop.

That's what surprised me about Liveaquaria keeping theirs so low! I was thinking there must be some biological advantage to shipping with lower salinity if they did it. Anyone know what Vividaquariums ships at?

tmz · 03/02/2013, 09:00 PM

Fish have an internal salinity of 1.008. they drink a lot and pass concentrated urine to maintain it in marine waters,averaging 1.0264. Going down doesn't hurt them ,short term if it's not below 1.008. Thus 1.009 is the low cut off for hyposalinity treatments .

The problem is getting them back to tolerance of a more natural sg from a very low one at 1.013,1.015 or even 1.018ppm. They need time to adjust to large upward swings or risk osmotic shock from fluids runinng out of them resulting in a loss of internal sg ,a loss of homeostasis, messed up body chemistry and in many cases death.
Gernerally a rise of.001 per day is considered a safe change. So, a fish coming in at 1.013 would need slow adjustments daily for 10 days or more to be on the safe side. Drip acclimation won't do it. Long cofinements to bag water are also harmful.

I agree low sg may supress some diseases which will bounce back when sg is raised to more natural levels. Makes me nervous.

tmz · 03/02/2013, 09:02 PM

Last time I checkeda shipment from live aquaria it was around 1.024,IIRC Actually surprised me. If you ask them ,they will probably tell you to enable you to set up qt aprropriately.

Deinonych · 03/03/2013, 12:50 AM

Quote:

Originally Posted by kismetsh

Is this always the case? I will probably be acquiring all of my fish from them and if this is their "standard" SG I'll go ahead and set my QT there.

What about their invert tanks?

As far as I know, yes. According to their web site, they keep SG at 1.018 - 1.020. My last shipment was 1.017. Diver's Den livestock is kept at 1.025.

According to their website, inverts are kept at 1.023 - 1.025.

03/02/2013, 09:00 PM	#28
tmz ReefKeeping Mag staff Join Date: Apr 2006 Location: West Seneca NY Posts: 27,691	Fish have an internal salinity of 1.008. they drink a lot and pass concentrated urine to maintain it in marine waters,averaging 1.0264. Going down doesn't hurt them ,short term if it's not below 1.008. Thus 1.009 is the low cut off for hyposalinity treatments . The problem is getting them back to tolerance of a more natural sg from a very low one at 1.013,1.015 or even 1.018ppm. They need time to adjust to large upward swings or risk osmotic shock from fluids runinng out of them resulting in a loss of internal sg ,a loss of homeostasis, messed up body chemistry and in many cases death. Gernerally a rise of.001 per day is considered a safe change. So, a fish coming in at 1.013 would need slow adjustments daily for 10 days or more to be on the safe side. Drip acclimation won't do it. Long cofinements to bag water are also harmful. I agree low sg may supress some diseases which will bounce back when sg is raised to more natural levels. Makes me nervous. __________________ 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.

03/02/2013, 09:02 PM	#29
tmz ReefKeeping Mag staff Join Date: Apr 2006 Location: West Seneca NY Posts: 27,691	Last time I checkeda shipment from live aquaria it was around 1.024,IIRC Actually surprised me. If you ask them ,they will probably tell you to enable you to set up qt aprropriately. __________________ 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.