GoldFish Aggression?
Tropical Fish

Tropical Fish Keeping - Aquarium fish care and resources » Freshwater Fish and Aquariums » Freshwater and Tropical Fish » Cyprinids and Atherinids » GoldFish Aggression?

GoldFish Aggression?

This is a discussion on GoldFish Aggression? within the Cyprinids and Atherinids forums, part of the Freshwater and Tropical Fish category; --> I am posting this for my mom. She has 4 goldfish that live together. 2 Comet and 2 Common, ranging from 3 inches to ...

Check out these freshwater fish profiles
Filament Barb
Filament Barb
Glowlight Danio
Glowlight Danio
Reply
Old 02-26-2011, 04:28 PM   #1
 
Aluyasha's Avatar
 
Question GoldFish Aggression?

I am posting this for my mom. She has 4 goldfish that live together. 2 Comet and 2 Common, ranging from 3 inches to 6 inches. The smallest one is about 6 months old and the other 3 are a little over two years old.
They live in a 29 gallon tank with a around 8 inch long common pleco. The tank has two filters and is heated and cleaned often. And yes, we are aware the tank is a little small. We have been upgrading tanks every year for them. In April they are getting a 55 gallon.
Well my question is. Mime, the second largest (maybe about 4 1/2 inches), has been biting Goldie Hawn, the largest one (6 inch) in the butt area. He has been doing it for about a year off and on now and he has recently been causing her skin in that spot to become red. It is at the spot between the caudal fin and the anal fins. Sometimes he bites hard enough to where you can see her skin being pulled when he jerks away. So my question is, why is he doing that? (btw, I am calling them he and she but I have no idea the sex of any of them)
Thank you. :)
Aluyasha is offline   Reply With Quote
Old 02-26-2011, 04:39 PM   #2
 
kelly528's Avatar
 
Yep, they're a he and a she and he's trying to mate with her.

Cold water sparks mating behavior so maybe when you are doing water changes you need to match the temperature better.
kelly528 is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
same sex aggression in fish Inga Freshwater and Tropical Fish 2 07-25-2010 12:41 AM
platy aggression? tanker Livebearers 11 03-30-2010 02:04 AM
need help with aggression.... ff_emt639 Cichlids 8 04-11-2008 04:49 PM
aggression Deefish Cichlids 1 08-23-2007 10:23 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search



All times are GMT -5. The time now is 04:35 AM.