Hatchetfish on its side

[Byron]

I was given these as a gift, but they look likeCarnegiella Marthae.

Any chance you could post a photo of the hatchetfish you have left? I'd like to be certain before suggesting this or that. But the angelfish is still a pending issue to resolve before any more fish are acquired.

Back to the temperature issue, what is the day temperature in the room where the fish tank is positioned, and what is the normal night temperature (you can check this first thing in the morning)? The tank water thermometer, is it reliable? The stick-on ones may not be, the floating ones usually are.

 

[Lefky]

Any chance you could post a photo of the hatchetfish you have left? I'd like to be certain before suggesting this or that. But the angelfish is still a pending issue to resolve before any more fish are acquired.

Back to the temperature issue, what is the day temperature in the room where the fish tank is positioned, and what is the normal night temperature (you can check this first thing in the morning)? The tank water thermometer, is it reliable? The stick-on ones may not be, the floating ones usually are.

I will get a pic of the Hatchet when I get back from school. During the day and night the temp is 80-82F. Using a stick on thermometer

 

[Byron]

I will get a pic of the Hatchet when I get back from school. During the day and night the temp is 80-82F. Using a stick on thermometer

OK. And the room temperature data too. I assume there is no aquarium heater in the tank now, correct?

I agree with Colin on not needing a chiller, but it is still important to pin down this temperature issue. Temperature drives the metabolism of fish, and this is the regular necessary day-to-day internal processes that keep the fish healthy and living. So temp does affect fish physiology.

 

[Lefky]

OK. And the room temperature data too. I assume there is no aquarium heater in the tank now, correct?

I agree with Colin on not needing a chiller, but it is still important to pin down this temperature issue. Temperature drives the metabolism of fish, and this is the regular necessary day-to-day internal processes that keep the fish healthy and living. So temp does affect fish physiology.

I have taken the heater out of the tank about a week ago. The temp in the room it is in is usually around 78-82 F but the water is normally at 80-82F even with a fan on over it.

 

[Lefky]

OK. And the room temperature data too. I assume there is no aquarium heater in the tank now, correct?

I agree with Colin on not needing a chiller, but it is still important to pin down this temperature issue. Temperature drives the metabolism of fish, and this is the regular necessary day-to-day internal processes that keep the fish healthy and living. So temp does affect fish physiology.

I jus felt the water and now I know the thermometer is wrong. I had my family feel the water and it felt around 76 ish. I am going to buy a new one, what do you recommend?

 

[Lefky]

Any chance you could post a photo of the hatchetfish you have left? I'd like to be certain before suggesting this or that. But the angelfish is still a pending issue to resolve before any more fish are acquired.

Back to the temperature issue, what is the day temperature in the room where the fish tank is positioned, and what is the normal night temperature (you can check this first thing in the morning)? The tank water thermometer, is it reliable? The stick-on ones may not be, the floating ones usually are.

Picture of hatchetfish and catfish

 

[Byron]

The hatchetfish is Gasteropelecus sternicla. This species gets a bit larger and needs more space, and a group of six or seven. You still have to sort out the fish as previously mentioned before acquiring any new ones. Though this tank is smaller than I would like to see for this species.

The cory catfish is Corydoras aeneus, and the albino is likely the same species only the albino variant. At least six of these (total) is preferable.

On the thermometer, one of the floating type that has a suction faster so you can hang it in one corner of the tank is more reliable than the stick-on. Or a digital thermometer, much more expensive. I use the floating type. Photo below shows one hanging in the upper left corner.