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Accetable agression in Sunfish tanks


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#1 Guest_Garyoutlaw_*

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Posted 11 June 2010 - 09:12 PM

I have not stocked my new 55 but was looking for some advice on what is accetable amount of agression to expect with a mixed species Sunfish tank - who make better pets ? who is simple to spawn & rear young ?

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#2 Guest_donkeyman876_*

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Posted 12 June 2010 - 07:11 AM

They will chase eachother around and likely nip at one-and-other for a while until they establish territory. I would reccomend Pumpkinseeds or Green Sunfish. Pumpkinseeds are fairly aggressive however oddly enough if they are fairly densly stocked in a tank they will be far less aggressive. That is to say please don not over-stock. Pumpkinseeds are also smaller than most other species of sunfish so you will be able to get more. Green sunfish aren't quite as aggressive however will show aggression sometimes, howeve mostly while they are still establishing dominance. You could stock some blugills, which nby sunfish terms aren't as aggressive in aquariums however; do grow fairly large so that would have to be considered when stocking. Hope that helps a bit, I'm sure other mmbers can elaborate on this.

#3 Guest_FirstChAoS_*

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Posted 12 June 2010 - 09:50 AM

my 55 can hold 3 sunfish, any more and the new one will die. They are terretorial and often chase each other out of their area of the tank.

When talking sunfish agression it is good to note that not every species of sunfish has the same level of agression. bandeds are not agressive at all (and i hear that also applies to their relatives the bluespots and black banded), most lepomis sunfish are quite agressive. Rock bass are someplace between the two.

#4 Guest_sandtiger_*

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Posted 12 June 2010 - 10:34 AM

IME male Lepomis sunfish in captivity are always in breeding mode and thus always aggressive. Even in my 100g setup one male sunfish will typically attempt to take over the tank, chasing other males and harassing females who he wants to spawn with, they are non-stop. Female sunfish are fairly non-aggressive and get along with each other without a problem.

#5 littlen

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Posted 16 June 2010 - 11:51 AM

Gary,

Unless you plan to start with young fish, I wouldn't get more than a pair especially if you plan on breeding them. Like others have said, you can heavily stock the tank to the point where each fish can't set up a territory. This is why you don't see the African cichlids fighting in the tanks at the pet store. Yet if you take a half dozen home and put them into the same sized tank you'll quickly start losing them due to aggression. Same with sunfish. I'm sure everyone on here has had different outcomes with various species and their aggression towards one another. Generally speaking, sunfish tend to be the most aggressive towards members of their own species--if at all. But as sandtiger said, one male of any species can easily take over a 55 if he goes into breed mode.

If you have access to dwarf sunfish, that would be ideal as you could have quite a few set up in a 55. I have banded and blue spots living together with little more than one quickly chasing another for a second.

Good luck, let us know how your tank turns out.
Nick L.

#6 Guest_sonix215_*

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Posted 16 June 2010 - 05:12 PM

I have 5 Green Sunfish in my 55 as of right now. along with a yellow bull and 2 corycats and a danio. and a 12" pleco that i need to get rid of.

#7 Guest_donkeyman876_*

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Posted 16 June 2010 - 06:53 PM

I have 5 Green Sunfish in my 55 as of right now. along with a yellow bull and 2 corycats and a danio. and a 12" pleco that i need to get rid of.

It might just be me, but that seems very over-stocked to me. I would say that the sunfih alone would be nearing the max fish density.




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