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Breeding mode long ear sunfish with no mate.


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#1 Fleendar the Magnificent

Fleendar the Magnificent
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Posted 09 July 2021 - 11:36 PM

I have a long ear sunfish in breeding mode with no mate. He's really, shall we say, * irritable* towards my spotfin shiners and bluntnose minnows. He fans the substrate to build a nest, but there's no females in my tank. What can I do to stop his aggression? He's about 3" long and the only sunfish in the tank.

I understand his frustration.... I am getting ready to go through a divorce....

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#2 JasonL

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  • Kentucky

Posted 10 July 2021 - 08:12 PM

I’ve gone through similar issues with my tank in the past.   As long as the minnows are feeding well and not unduly stressed I’d give it some time.   This is the type of stuff that happens normally in the creeks during the spawning period. 
 

You can do a water change, cool the tank down, or feed a little extra, that may help.  Another option is to put your sunfish in timeout  for 48-72 hours in a 5 gallon bucket with an aerator.   Then return him to your tank.  That will usually dial him down for awhile.



#3 Fleendar the Magnificent

Fleendar the Magnificent
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Posted 14 July 2021 - 09:29 PM

I’ve gone through similar issues with my tank in the past.   As long as the minnows are feeding well and not unduly stressed I’d give it some time.   This is the type of stuff that happens normally in the creeks during the spawning period. 
 

You can do a water change, cool the tank down, or feed a little extra, that may help.  Another option is to put your sunfish in timeout  for 48-72 hours in a 5 gallon bucket with an aerator.   Then return him to your tank.  That will usually dial him down for awhile.

Thank you kindly. The shiners and blunt nose minnows are doing fine and eating flake and frozen foods. The rainbow darter is eating frozen foods, the sunfish is eating frozen and flake foods, the small 1.5" banded darter has been EATEN, and the 3 rusty crayfish are doing well and eat whatever is in the tank and left over. They (the crays) even ate *every* strand of hair-like algae in the tank which was becoming a problem. Wonder who snacked on the darter? I am about to upgrade tanks to a 30 gallon. I will try colder water and hope that the cold water and more room will help.



#4 Michael Wolfe

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Posted 15 July 2021 - 10:00 PM

Wonder who snacked on the darter?

Crays eat fish, no doubt about who.  And they do it crawling around at night while the fish are asleep, and darters do sleep.


Either write something worth reading or do something worth writing. - Benjamin Franklin

#5 Fleendar the Magnificent

Fleendar the Magnificent
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Posted 23 July 2021 - 11:07 PM

I gave that some thought, and it could be the crays. Never found any bones, however, I do know that the crays eat their shells for calcium replenishment, so they probably would have eaten the micro-sized bones as well.

 

Thanks! The Grumpy old man.....






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