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Discussion Starter · #1 ·
I have a 29 biocube, reasonably heavily planted, currently under construction. It houses one pretty half-black male guppy, two male Psudomagil Signifer rainbows, a few random neo shrimp, and three pygmy cories. Don't worry, the pygmies are getting friends soon.
The two rainbows were going nuts chasing eachother, so I put one in a mesh hatchery to keep them apart.
Now, the guppy is a horny little bugger, and he was bothering the one that was still in the tank. I put the other rainbow back in the tank to give Bull (the guppy) someone else to chase, and something happened that kind of surprised me.
Both rainbows kind of exploded into full color and started lunging at eachother, spinning in circles and basically just dueling. A lot. Then the guppy dove into the middle (apparently wanted to mate) and got chased away, and now the rainbows are chasing eachother around with the guppy just racing around and looking freaked.
I'm planning to add four females... Would that work?
Is their dueling going to stress them out, or is it okay? They've sure colored up, but I think that's just a display.

Wanna guess why I named the guppy Bull?
 

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Discussion Starter · #4 ·
Hey, Bull stopped chasing them! I guess he saw the displaying and realized that they aren't females... It did look kind of like how male guppies fight.
The two are now pretty much ignoring eachother... Weird, though, one of them is just sitting in the filter current and swimming against it. Maybe he likes it.
 

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Discussion Starter · #6 ·
I hadn't considered that... Honestly, I didn't realize that guppies released hormones. I mean, I know fish release hormones sometimes, but- Oh, is that why guppies breed like rabbits? They're constantly amped up on hormones?
Does that mean that keeping a male guppy in a tank with these guys will make them more likely to breed? Because that- hmm... That could be useful...
Could it potentially stress them, though?
 
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