Exodons
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I've got 4 3 in. exo's in a 55 gallon.. They will chase each other around a bit but won't bother my 6 in. needle fish. They are NOT capable of causing any real damage on one another.....There jaw structure and teeth do not compare with the piranha. Exodons will scrape scales off one another and rarely take bites out fins. All mine have a worn upper jaw from there parasidic scale scraping......
SEPPA;1748006; said:I've got 4 3 in. exo's in a 55 gallon.. They will chase each other around a bit but won't bother my 6 in. needle fish. They are NOT capable of causing any real damage on one another.....There jaw structure and teeth do not compare with the piranha. Exodons will scrape scales off one another and rarely take bites out fins. All mine have a worn upper jaw from there parasidic scale scraping......
in groups less than 10, they tend to kill each other
Exodons need be in a group of at least 10 and 12 is better otherwise they will pick off the weak one at a time also the school tends not to stay together after about 50 fish. They are fun active fish. In a 55 I would get between 15-20. They are cool fish when you get them at 3" long but they are amazing at 5"-6"
I added 8 bucktooth tetras to a 125g tank already housing a 7" silver aro and 2 plecos. At first they were fine, constantly schooling together. After about a week they established territories and began harassing the weaker exos and then turned their attention to the aro. I eventually had to move them out as they would constantly pick at the silver. In my experience, they do better in larger schools. I now have 20 in a 30g long and they are very entertaining. The only crappy part is the constant water changes.
The general rule of thumb that i have allways heard and went buy is take your tanks gallons and divide by 2 and that is the minimum amount of exo needed. I had 6 in a 20g and they were fine for a few months and then the smallest was killed by all the others. So the next day i moved the remaining 5 to a 10g tank and they lived happily for the next year until I gave them away to a freind that still has them in that 10. I have allways wanted some for my 55 but my lfs could never get a big enough sschool in. I would ask for 30 and they would get 10.
i love all the people chiming with "i heard this" and "i heard that". lol. not very useful information, especially the people giving out the wrong information.
fact:
- you want them in a group of 10+. while i have seen groups as small as 6 work, i would suggest a minimum of 10.
- the rule of thumb with these fish is, one square inch of fish, per gal of water. now, bare in mind that this "rule" is more of a guideline, and is meant for novice keepers, and people who apparently dont understand this fish very well in regards to aggression and bio-load. while you CAN do more then that, i wouldnt suggest it unless youre able to upkeep them properly with frequent WC and overfiltration.
- they can have tankmates. its not suggested, but is possible. armored cats and larger plecos should be fine. i have plecos in my exodon tanks and theyre alive and well. however, you dont want to put them with larger aggressive tankmates (like the aro mentioned above) who will surely make a quick snack of the exodons. and at $8 a pop, thats one hell of an expensive feeder
- they ARE capable of doing damage to eachother and tankmates. contrary to their size, these guys can be mean, and while you may not see them eating eachother, you will notice them disappearing. and 1 + 1 = 2
- these fish should be added as one large group, if possible. much like piranhas, once established in the tank, anything added after the fact will be considered food. (so to speak). if you decide to add more exodons to your shoal after the initial group, do it in a group of 5 or more, and i also suggest a WC beforehand to help stir things up a little. if you try to add one more to the community after the fact, chances are you may not see that one ever again.
- these guys can eat a ton. make sure you keep them well fed to keep aggression down. if not, even a large group wont stop them from picking at eachother.
for more information on exodons, feel free to PM me, or visit my informative exodon website www.google.com
fact:
- you want them in a group of 10+. while i have seen groups as small as 6 work, i would suggest a minimum of 10.
- the rule of thumb with these fish is, one square inch of fish, per gal of water. now, bare in mind that this "rule" is more of a guideline, and is meant for novice keepers, and people who apparently dont understand this fish very well in regards to aggression and bio-load. while you CAN do more then that, i wouldnt suggest it unless youre able to upkeep them properly with frequent WC and overfiltration.
- they can have tankmates. its not suggested, but is possible. armored cats and larger plecos should be fine. i have plecos in my exodon tanks and theyre alive and well. however, you dont want to put them with larger aggressive tankmates (like the aro mentioned above) who will surely make a quick snack of the exodons. and at $8 a pop, thats one hell of an expensive feeder
- they ARE capable of doing damage to eachother and tankmates. contrary to their size, these guys can be mean, and while you may not see them eating eachother, you will notice them disappearing. and 1 + 1 = 2
- these fish should be added as one large group, if possible. much like piranhas, once established in the tank, anything added after the fact will be considered food. (so to speak). if you decide to add more exodons to your shoal after the initial group, do it in a group of 5 or more, and i also suggest a WC beforehand to help stir things up a little. if you try to add one more to the community after the fact, chances are you may not see that one ever again.
- these guys can eat a ton. make sure you keep them well fed to keep aggression down. if not, even a large group wont stop them from picking at eachother.
for more information on exodons, feel free to PM me, or visit my informative exodon website www.google.com
oh and to the op, you can easily do 30 in a 55g without having to worry about excess maintenance.
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