Status: Undetermined
CNN reports that the city of Rome has passed a set of laws to prevent cruelty to animals. For instance, dog owners will be forced to walk their dogs regularly. And round goldfish bowls have been banned because round bowls supposedly cause the fish to go blind. Specifically, the article says:
The newspaper [Il Messaggero] reported that round bowls caused fish to go blind. No one at Rome council was available to confirm this was why they were banned. Many fish experts say round bowls provide insufficient oxygen for fish.
I have never before heard this claim about the dangerous effects of round bowls. I tried to google "round bowls goldfish blind" to see if anyone has written about this, but no luck. However, depending on the size of the opening in the bowl, it does seem logical that the fish may not get enough oxygen. And if they don't get enough oxygen, maybe they'll go blind (shortly before they die).
Incidentally, I'm totally in favor of laws forcing people to walk their dogs. I hate it when people (such as my neighbor) keep their dog chained up in their yard all day, every day.
Comments
Siamese Fighting Fish are sold in round fishbowls, stay in the pet store forever but they can still see other fighting fish. That part's bogus, but the first one is impossible to enforce.
That's not to say that keeping a goldfish in a small bowl isn't cruel, however. I think it's one of the most common forms of cruelty against pets around. In the aquarium hobby, we refer to those little bowls as "goldfish torture chambers."
You see, goldfish grow to be big fish (a full-grown goldfish is about a foot long), and they have higher oxygen requirements than most pet fish, so one will be very crowded in a bowl if it's any smaller than 10 gallons or so. You might get away with keeping a small juvenile goldfish (2 inches or less) in a smaller bowl (say, 2 gallons) if you change the water very frequently, but you'd still need a bigger tank to move the fish to when it grows up-- which it will, if it lives long enough and you don't stunt it through filthy water and other bad conditions. What's that, you've never seen a foot-long goldfish? That's because most of them never get a chance to get that big. A goldfish's natural lifespan, by the way, is several decades. How many have you known of that lived that long?
I'll just add to his comment that the majority of people keeping fish in bowls are not up to cycling tanks or maintaining water quality. On my pet site, we ALWAYS recommend the biggest tank a beginner can get.
Simplistically: Say a fish produces X amount of waste. X is going to be 10% of the water in a small bowl, but only 1% in a large tank. More water means more margin for error.
As for going blind, I've never seen or heard of that, and have kept fish for decades. I've even had them in bowls, though never when I could afford better, and always with strict water maintenance.
Hooray for Rome, though! I doubt it's all enforceable, but at least people will be thinking about it!
I've seen bowls that were round vertical, with flat sides and a small top opening. I've seen bowls that were round horizontal - only about 4-6 inches tall but 12 inches across. Those have a good size opening. I've seen several types of spherical bowls. One had a tiny opening, one had a very generous opening. One was a "Bio-Orb" bowl. Its opening was smaller, but it had a very advanced filtration system and was well aerated. So, which type of bowl are they banning? Wouldn't it just be simpler to TEACH people how to take care of their animals rather than regulating the whole mess?
Can it even see outside the tank?
Can it remember that it saw outside the tank?
Even so, what is round? do they mean 'perfect circle' round, or as in, 'it cann't be any shape that has one continuous edge' round?
I'm not an animal rights person, but I am an animal welfare person. I'm glad to see someone at least try this.
Goldfish will grow between 10-14 inches (2 feet or longer for Koi), require approx. 2 gallons per inch of body. A round goldfish bowl isn't appropriate for any type of fish, not even bettas because bettas are excellent jumpers.
The average goldfish would need a 20 gallon tank, just for himself, with excellent filtration.
They're not dying of blindness, they're dying of choking on their own feces. Something that should be banned by law since its incredibly cruel.
Goldfish have higher oxygen requirements than most other aquarium fishes because they are adapted to cold water (which has a higher oxygen concentration than warm water) and because they are relatively heavy-bodied, so their body mass is greater than that of other fishes the same length, and because they are messy fish that tend to foul their own water pretty fast.
And finally, yes, of course fish can go blind (except for the few eyeless species, which are, of course, already blind), but that's an entirely different problem from dying of overcrowding and polluted water.
I had him in 10 gallons at my old place, but had to leave him behind with my parents when I moved. Now I have a set up at work for him, when I went to rescue him... a rescue it was indeed! Parents had let the water in the tank evaporate down to a few inches (hard crusty lime all over the place.. )
Anyway to get to the point.. I think he can see quite well.. Bubbles has learned to "Beg" for his meals, by "dancing" around at the front of the tank whenever I present myself (of course he may be feeling the vibrations of movement.. but it sure looks like he can see me). I have come to the conclusion from owning him that goldfish arent as dumb as they are thought to be.
http://interactive.usc.edu/members/naimark/archives/005507.html
By the way, Goldfish grow in proportion to the size of the tank they are raised in. They stay small if left in a small tank. If given some aquatic plant material, the oxygen level and water pollution can be regulated some. Theoritically, if there is the right temperature, plant material and light level and air bubble and tank size, they could live in a airtight container.
I love cold water fish,I am very new to this but I have done my outmost best to take care of them,some of my"babies" have died,and it really saddens me as I have changed water on a regular basis,besides the fact that I have been told that they are the most reasonable pets to keep,I have found myself spending quite a lot more than I expected to take care of the fish,I do not mind the spending as long as they are alive and I have friends to talk to at home..I just love them,but since the few that I had just died on me,after everything I did to keep them safe,I am left with one,but I have just realised that one of his/her eyes is completely shut..what can I do? I am scared my fish will die,I want to go get more but I really am affected by the dying...the fish still plays around but I really wonder,what if the one eye is blind....? I wanted to go get him some friends but am afraid he could infect them and they will die...I use special medication(Aquarium pills) to keep the water safe but it does not seem to be doing much..Any advice for me?
If you want, we can correspond by email so as not to clog up the board. My email is .(JavaScript must be enabled to view this email address)
Here's a website you can go to, in the meantime. Good luck, I hope your baby gets better.
http://www.petlibrary.com/goldfish/goldfish.html
This may be of some use as well http://www.koivet.com/
Look, it's simple. It doesn't matter what kind of creature it is. The only question to be asked is, does it have the capability to suffer? Doesn't take a rocket scientist to figure it out.