got home from work found two tangs dead

[rbike1331]

dont know why tangs died they were doing good last night did my testing nast night to all with in range salt 1.024 ph 8.2 alk9 cal410 ammonia 0 nitrate .02temp73 the tangs i dont know how old they were when i got the tank 8 months ago they came with it

 

[~Flighty~]

When large fish die mysteriously I always think power outage. They are the first to go from O2 deprivation.

 

[kotu100]

not too experienced but maybe the 73F had something to do w/ it?

 

[DawnOctopus]

73! That's pretty chilly!

 

[rbike1331]

sorry about that 76.3 temp

 

[reefsmurf]

Any clocks running on AC power running behind?

 

[Greg Hiller]

>When large fish die mysteriously I always think power outage. They are the first to go from O2 deprivation.<

I second that hypothesis. Everyone needs the auto on airpumps.

 

[RayD]

sorry about that 76.3 temp

73 is a little chilly but not lethal IME.

I agree with Greg. The auto air pumps are a must. I have two.

 

[Cardiak]

Where do you get these pumps? I've asked around a few LFS before and they all looked at me like I was asking for something that doesn't exist.

 

[Greg Hiller]

I don't know what local shops have them, but IMO they all should. You can pick them up mail order:

http://www.thatpetplace.com/pet/prod/212719/product.web

 

[Snidgetless]

So i took a look at the link. Can you go into more detail how it works? I get it turns on when it detects no AC, but is it a separate air line you bury in the sand? The unit must be plugged in itself right but runs on batteries?

 

[Greg Hiller]

>So i took a look at the link. Can you go into more detail how it works? I get it turns on when it detects no AC, but is it a separate air line you bury in the sand? The unit must be plugged in itself right but runs on batteries?<

That's right. I run a thin acrylic tube (you can get them at any shop) down to just above the sand bed in the back of the tank behind the rocks. I end the tube with an airstone. Use one per 2 ft of tank length. They will run for several days on a pair of D batteries. Best insurance policy for any tank, and at $12-14 it sure beats replacing fish!

 

[RayD]

So i took a look at the link. Can you go into more detail how it works? I get it turns on when it detects no AC, but is it a separate air line you bury in the sand? The unit must be plugged in itself right but runs on batteries?

I drop mine in the overflow with an airstone. Can't even see that it's there.

 

[Dave]

I drop mine in the overflow with an airstone. Can't even see that it's there.

wouldn't that trap alot of the O2 enriched water in the overflow?

 

[stevenp]

How is it that fish can be shipped in bags for sometimes days and survive, but only last a few hours in an aquarium without circulation?

 

[JohnK]

The airspace in the bags usually gets filled with O2.

 

[ReeferMedic]

I drop mine in the overflow with an airstone. Can't even see that it's there.

If the airstone is in the overflow, when the power goes out, all that will get oxygenated is the water in the overflow.

 

[Greg Hiller]

>How is it that fish can be shipped in bags for sometimes days and survive, but only last a few hours in an aquarium without circulation?<

What was said above, but also the corals, rock, and sand all pull a lot of oxygen out of the water at night. The bacterial load in sand and rock is enormous.

 

[NateHanson]

I'd also guess that fish use a lot more oxygen when they're active in a large tank, than when they're basically sitting dormant in a little bag of water.

 

[rbike1331]

no power outage all clocks and timers for lights still have the right time all other fish doing fine