Thread: aggressive neons???
04-07-2014, 12:08 AM #1
I have kept neons and cardinal tetras before and have had no trouble with aggression. I have them in a planted tank which I have never done before... What kind of conditions would drive a community fish to be so mean to each other?
I have a high PH
I did keep the tank at 25 degrees but have lowered it to 23 degrees in an attempt to "cool them down"
Currently 5 neons/cardinals
Just added 3 cory cats today and no change in behaviour. Corys have been harassing the neons a bit but not badly.29g - planted ; 5 cardinal tetras ; 3 cory cats
04-07-2014, 12:35 AM #2
The tank is big enough for them so I don't think it is territorial aggression. You might need to get more to create a larger group. Most fish, even those which are considered extremely peaceful like neon tetra, will find a "pecking order". A larger group of this schooling fish should help to ease the aggression.When I go fishing I just place a sharp rock in the water and sit there waiting for all the dead fish to float to the top... Kingfisher
Brutal honesty will be shown on this screen.
I think my fish is adjusting well to the four gallon, He's laying on his side attempting to go to sleep on the bottom of the gravel.
Tolerance is a great thing to have, so is the ability to shut up.
I can explain it to you, but I can't understand it for you.
04-07-2014, 12:36 AM #3
I see a few reasons why they might be showing aggression. First, we are talking Celsius right? I'm gonna go ahead and assume so and carry on. Second, IME cardinals prefer a lower PH. Thats also the answer I got when when researching before I got my cardinals. Third, I don't think cardinals and neons school together. I may be wrong, but if not, you should bump both separate schools of fish up to 8-10. As long as your tank is big enough for more fish. Corys also would be happier with a bigger school. At least a school of 5 Corys would improve their behavior greatly.Planted 37 gallon, Low tech, with Cherry Barbs, Cardinal tetras, and red cherry shrimp.
04-07-2014, 04:24 AM #4