Temp
Aquarium Advice Regular
I have a freshwater tank with just 1 large common goldfish.
The tank is placed next to the wall, where there is little light. The light level is about the same as a bedroom with the windows covered with a medium thickness of curtain. It still has light, but somewhat dim.
I've noticed that my fish wasn't able to spot his fish food as accurately as before it was little. I always drop his fish food at the corner of the tank, but my fish would spaz around, gulping air at the center of the tank surface.
After a while, it would realize where the fish food is located, and start eating. It has been like this for about a year.
I'm starting to notice that its eyes are getting black. It doesn't have any diseases or anything blocking its sight, just that I can now see its skull and eye socket very well. By black, I meant that the eyes are very transparent. If I reflect the dim light from the curtains with a mirror, I can see a sliver of white at the back of its eyes. I'm pretty sure it's the skull, because the texture of the white is crispy-like.
1. Does the brightness of the room affect how the fish goes blind?
2. Will my fish start going blind?
3. Is it normal for a fish to have very black eyes when it is living in a dim-lit room for a long time?
Thanks in advance.
The tank is placed next to the wall, where there is little light. The light level is about the same as a bedroom with the windows covered with a medium thickness of curtain. It still has light, but somewhat dim.
I've noticed that my fish wasn't able to spot his fish food as accurately as before it was little. I always drop his fish food at the corner of the tank, but my fish would spaz around, gulping air at the center of the tank surface.
After a while, it would realize where the fish food is located, and start eating. It has been like this for about a year.
I'm starting to notice that its eyes are getting black. It doesn't have any diseases or anything blocking its sight, just that I can now see its skull and eye socket very well. By black, I meant that the eyes are very transparent. If I reflect the dim light from the curtains with a mirror, I can see a sliver of white at the back of its eyes. I'm pretty sure it's the skull, because the texture of the white is crispy-like.
1. Does the brightness of the room affect how the fish goes blind?
2. Will my fish start going blind?
3. Is it normal for a fish to have very black eyes when it is living in a dim-lit room for a long time?
Thanks in advance.