how many silver dollars can i keep in a 20 gallon tank?

Question

i have one and am planing to get more

Answer 1

2 in a 20 gallon,as long as that was all that was in there would not cause stress due to schooling issues or any other problems.

Nosoop as usual over analyzes,so does "finatic"
Both of those 2 have long winded answers with out many facts.

I have looked on a few sites,and all I have found say 20 gallons as minimum.I have a friend who has had 2 in a 20 for 8yrs.now also.

What's even funnier is,my dentist office has a 30 gallon that has had 4 silver dollars in it for 10 years too.

Answer 2

In a 20 gallon tank, you really can't keep any... They will reach about 6 inches, and they need a school to prevent stress, which is detrimental to their immune systems. If you want a school of them, get at LEAST a 55 gallon tank. If you are looking for a small, similar fish, try Hatchetfish... They stay 1.5-2 inches and a school of 5 would be right at home in a 20 gallon tank.

Soop Nazi

EDIT: Confused, if you are gonna freak out over the slightest thing, maybe you need to turn off your computer, unplug it, and stop using it for about a week, take a trip to the real world, and realize that you will simply believe whatever you want to believe, and nothing anybody says will change that. Would you ever keep two Neon Tetras by themselves? No! Why? Because they are schooling fish!

EDIT 2: Oh my goodness! If a site on the Internet says it, it must be true! Because we all know that I couldn't go make a fish site and say that you should keep it in a bowl! As in most cases, you have to realize that YOU have to think, and consider that you shouldn't be keeping two schooling fish by themselves, especially if they will reach 6 inches... Also, ask your friend how many times his fish have gotten sick, stressed, acted abnormally, or done other things fish would never do. I can guarantee you it is much higher than a proper school in a proper tank.

EDIT 3: Oh, that's good, because I'm sure dentists are very concerned about their fish... Most companies don't even service their own tanks! This has to be one of the most pathetic arguments I've seen.

EDIT 4: The hindered growth referred to by one answer is called stunting. Stunting is a result of too little space for too many or too large a fish. Stunting causes bone, muscle, and organ deformities, making it nearly impossible to function, often resulting in organ failure and death. Stunting is NOT good and, for obvious reasons, should be avoided.

Answer 3

If all you want is silver dollars, eight to ten, since they grow fairly large. Put the remaining seven to nine in at the same time, though. Keep in mind that I'm assuming these silver dollars are small (1-2 inches). They can grow very large but being placed in an aquarium when they are at a smaller size can and will eventually hinder their growth.

EDIT: After reviewing everyone else's answers, I feel the need to clarify a few things. First of all, the larger the tank, the better. This is a pretty obvious fact (for most fish), but the question asks how many can be kept in a 20 gallon tank-- NOT "what would be the ideal tank for silver dollars." Second, the "hindering of the growth" I mentioned is referred to as stunting, but negative consequences listed above are a little harsh and over the top. You have to understand that the growth of almost ALL ornamental fish is stunted to a certain extent regardless of the volume of the aquarium being that the vast majority of aquariums are much smaller than lakes (or oceans!) In fact, most of the ailments listed above are usually products of bad water chemistry and/or genetics.

Answer 4

I wouldn't recommend keeping more than 1 silver dollar in a 20 gallon tank. They are schooling fish, and if you choose to keep more than 1, you'd need to jump up to 5 or 6 to avert aggression issues. Keeping this many would require a 55 gallon (long) tank.

Answer 5

they are schooling fish i recomend at least a 50 gallon tank or a different breed of fish. try ebay to find good deals on fish tanks