Spotted silver dollar questions

[slippery slimecoat]

I have 5 spotted SD. Four of them have distinct spots with black and red along the fins. Also distinctive black and red spots behind the gill plate with a black "blotch" under that. The fifth one has very faint spots on its body with no color other than the red anal fin. That one is also larger than the other four. I've noticed that one being chased by the others. Are the markings the difference between male and female? Possibly two different types of SD? Tried to get the best pics I could with my phone. Sorry if the one shows sideways.

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[Silent Bob]

The one in your first picture would be a male. You can tell by the protrusion in the anal fin. Nice colors on him. The one in the second picture with the straight anal fin would be a female. Females tend to have less color in them then the males.

I take it the male is chasing the female around?

 

[slippery slimecoat]

Thanks for the response. Yes the males are chasing the female. Not sure if it's the same male every time. Do I have to worry about the female being stressed out from the chasing?

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[Anderman]

The first looks to be metynnis maculatus and second looks to be a regular silver dollar(metynnis hypsauchen)

 

[Silent Bob]

Thanks for the response. Yes the males are chasing the female. Not sure if it's the same male every time. Do I have to worry about the female being stressed out from the chasing?

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As long as she is getting a chance to take a break from chases she should be fine. These little SD's can take a lot. The faded color in her spotting can also be from stress. Your best bet would be to find a few more females to give her a break.

The first looks to be metynnis maculatus and second looks to be a regular silver dollar(metynnis hypsauchen)

Both are Metyniss Lippincottianus.

 

[slippery slimecoat]

As long as she is getting a chance to take a break from chases she should be fine. These little SD's can take a lot. The faded color in her spotting can also be from stress. Your best bet would be to find a few more females to give her a break.

The chasing is often, but not non stop. To be honest, I don't really have the tank space for more fish, and if I did I'd prefer to use the space for something else. Would I run into issues with having all males and no females?

The first looks to be metynnis maculatus and second looks to be a regular silver dollar(metynnis hypsauchen)

I surely am not versed in silver dollars enough to know all the scientific names. But what I know as a "common" or "regular" SD, doesn't seem to have the same body shape as this one.



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[Silent Bob]

The chasing is often, but not non stop. To be honest, I don't really have the tank space for more fish, and if I did I'd prefer to use the space for something else. Would I run into issues with having all males and no females?



I surely am not versed in silver dollars enough to know all the scientific names. But what I know as a "common" or "regular" SD, doesn't seem to have the same body shape as this one.



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All males should be fine. Been there done that. If the female is larger she should probably be able to hang in there.

As for spotted sd's you have Maculatus which have a taller body shape and Lippincottianus which have a more elongated body. Both of yours pictured are Lippincottianus.

 

[Anderman]

That's why I said LOOKS TO BE. If I was positive then I would have said POSITIVE ID!!



I myself don't buy fish unless I know the ID before the purchase!!

 

[slippery slimecoat]

All males should be fine. Been there done that. If the female is larger she should probably be able to hang in there.

As for spotted sd's you have Maculatus which have a taller body shape and Lippincottianus which have a more elongated body. Both of yours pictured are Lippincottianus.

Thanks for the feedback. I kind of thought it was a male/female thing when I started the thread but wanted confirmation. And again, thank you for clarifying the differences between Maculatus and Lippincottianus.

That's why I said LOOKS TO BE. If I was positive then I would have said POSITIVE ID!!



I myself don't buy fish unless I know the ID before the purchase!!

Wow. Not sure what all else to say to that lol. Have a good day, bro.

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[rodger]

That's why I said LOOKS TO BE. If I was positive then I would have said POSITIVE ID!!



I myself don't buy fish unless I know the ID before the purchase!!

Wow. That comes off a little.......

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