Quarantine and water temp

[Wildreefs]

i have my quarantine up and running, and in last two days experienced two deaths, one being a tiny blue ring angel, other being a tiny Tomini tang.

They were new for me, however were at lfs at least 3 weeks eating, I had them for not quite two days and dead.

Running 1.5 copper, salinity is 1.021, zero ammonia.

Scratching my head, the only thing I can find is temperature. I have my new Eheim Hager set at 78 degrees, however the water felt warmer. I placed in a new glas thermometer, and it reads 82-83. With a temp infrared gun, ($20 Home Depot kind), it reads 85.

Let’s assume it’s somewhere around 83-84, would that be a reason to lose fish in two days? It has plenty of oxygen, in a 29 gallon tank I have a giant hang on back filter crashing the surface with a 4 inch drip from filter to surface, two airlines running with big bubbles, and. 250 gph power head running across surface.

 

[Humblefish]

Higher water temp = less available oxygen in water. Plus, copper and other meds will deplete oxygen.

So, if these fish had worms or parasites inside their gills and were already having difficulty breathing because of that ......

 

[Wildreefs]

Never would have thought 84 was too high, although I didn’t intend or want to set it that high.

The angel was swimming around find this morning, had what appeared to be a brown coating on it some spots, similar to what I see on stressed out emperor angels.

If it isn’t that, I really don’t have any clue as to why they do so well at lfs, then hit a wall on my tank

 

[Humblefish]

Never would have thought 84 was too high, although I didn’t intend or want to set it that high.

84 will just stress a healthy fish, but if the fish has a disease that changes things.

 

[Wildreefs]

84 will just stress a healthy fish, but if the fish has a disease that changes things.

Ok well, although my Eheim was set at “78”, and giving me warmer water, I dropped setting to “72”, hopefully that will yield 77-78.

Can’t trust heaters

 

[Humblefish]

Ok well, although my Eheim was set at “78”, and giving me warmer water, I dropped setting to “72”, hopefully that will yield 77-78.

Can’t trust heaters

If it's an Eheim Jager heater, you have to calibrate those. Still never perfect but calibrating will get your closer to the actual temperature.