Guppy becoming anti-social? - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 4 Old 12-25-2012, 09:38 PM Thread Starter
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Guppy becoming anti-social?

So, I've had this one guppy fry, who has been alone for his whole life. For whatever reason he was the only guppy fry to be born/survive for 1 or 2 months, at which point I moved him into his own 2.5 gallon with a heater and filter. He was in that tank alone for 2 months and has always seemed happy.

So, one of my other guppies is finally big enough to go into the tank (it's going to be a male only tank, so far he is the only one developed enough to tell the gender) and he seems happy, but the other one isn't. His fins seem slightly cramped, and he keeps chasing the other one around. Is this just typical male aggression/territorial behavior? Or has he decided he rather enjoys being alone?

happy owner of a wild type GFP axolotl named Percival and a bearded dragon named Deucalion.
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post #2 of 4 Old 12-27-2012, 10:43 PM
Imagine if all the sudden, some random person moved into your bedroom. would it stress you out? I wouldn't say he's anti social... teritorial probably. Male guppies tend to be kinda agressive. Once you have some more it won't be so bad because any agression will spread out, not just target one fish. What I would do to help them be comfortable is redo the tank take tem out and feed them seperately. Meanwhile, you can rearange the decor. make some hiding spots and display the decor so that it sort of devides up the tank into sections. put them back in together. The purpose of that is so instead of it being like one fish invading the others territory, the two are going into an unfamiliar environment together. This should help alot while they adjust to eachothers company!
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post #3 of 4 Old 12-27-2012, 10:56 PM
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I agree with the territory thing happening but IMO there really isn't anywhere to hide in a 2.5 gallon tank. Even in a 10 gallon there isn't a lot of room for "territories" sadly. Is the 2.5 your fry tank? Will everyone be moving to something bigger at some point? Maybe putting them all together in something bigger like a 10 might be better as adding to their numbers in some species reduces aggression. But I wouldn't add to the 2.5.

Every kid, regardless of what they are going through, is ONE caring adult away from being a success story. ~ Josh Shipp, Teen Behavior Expert
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post #4 of 4 Old 12-28-2012, 09:43 AM Thread Starter
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They seem to have gotten used to each other. No clamped fine from either side and they don't chase each other (except at feeding time) no, the 2.5 isn't the fry tank. It's my brothers tank and he really wanted some fish, so once the fry is old enough to tell what gender they are, I put them in his tank. I plan to watch and take them out when they get a bit bigger and just continually swap out the fish. The ones that he was right now are a little under an inch (fins included).
I figured it was more him being territorial, but I wasn't sure. They seem to be getting along okay. The older one has definitely taken up residence as the alpha male among the two of them. The other kinda just stays out of his way most of the time. I have 1 possibly 2 more that will be added soon. I'll take out the current two and rearrange before putting everyone back in to assure there won't be any problems.
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