one single Corydora habrosus -what to do?

I just discovered I have one single corydora habrosus (salt and pepper cory). I bought 4 peppered cories (corydora paleatus)8 months ago from my local fish store. I put them in a 46 gallon with 6 bronze cories. Well, the bronze cories started to spawn, and the tank is overcrowded, so I decided to put what I thought were 4 peppered cories into a ten gallon planted tank with one of my lone bettas.
It took forever to catch them, and I was shocked that while 3 were about 2.5" the other one hadn't grown much at all and was still under 1". I thought it was stunted and was going to die (its tale looked different too). Well, you can see where this story is going. After some googling, I am positive that I have 3 paleatus and 1 habrosus (I can't believe I didn't notice it earlier but when I got them, they were all under .5 inch and looked similar enough.
Here's my question - do I leave the habrosus with the 3 paleatus in the 10 gallon. He seems fine but he doesn't school with the peppered cories much - he stays on his own.
In the big 46 gallon where he grew up, (gravel bottom) he used to hang out on the plants and was rarely on the bottom. Now, he stays on the sand bottom of this 10 gallon tank. I have several options. I could put him in the 46 gallon with 6 bronze cory and some babies. I could leave him in the 10 gallon with the peppered cories he came with. I could put him in another tank where I have albino cories or I could put him by himself with another betta in a 10 gallon.
IF there were somewhere here where they sell habrosus, I would get a couple more for another one of my 10 gallons, but I've never seen them in a store here and I would have to order them from aqua bid and while I feel bad for this little guy, I really wouldn't spend money on the shipping etc when there are lots of other fish I would rather have.
So after this saga, I was wondering if I could get opinions on whether to leave this guy in the 10 gallon with 3 peppered cories and a betta (very docile, mostly blind from dragonscale) or put him back in the 46 gallon that is slightly overcrowded, heavily planted where he could get lost more with the other fish and plants.

 

keep him with any group of cories. never alone
aquabid isn't bad. most the time you should be shooting for a similar price to that of purchasing from the store. typically a pygmy cory in a store would cost $5-$7. but aquabid sellers will typically sell it at $3.50- $5.50 +$15 shipping thus adding a group will cost you about the same as purchasing a group at a lfs. so typically if you purchase a correct group (pygmies usually sell in groups of 6s and 10s) you should be equalling the price of the purchase at the local store.

if you want to keep him happy w/o spending money. figure out another aquarist who is willing to take him in. make sure they already have an established group.

 

As above, try & get some more or rehome him to someone who already has some.
Btw 10 gallon is not big enough for the peppered, they can get to around 3" & are quite chunky & need more space, they also prefer cool temperature around 22c max

 

Thanks guys. I'll keep my eyes open for more and keep him where he is for now. I have to say I wish I saw more 15 shipping options on aquabid. Right now, I have too many fish and I'm trying to rehome some, but I would rather have habrosus for the betta tanks than peppered cories. I didn't realize the paleatus had to be kept at 22c max coradee. I mean, I'm not willing to keep any of my tanks that cool (71.6 Fahrenheit!) for these 3 guys, but I have to say that I would guess that most paleatus are kept at much warmer temperatures than that. I mean there are millions of these guys in US and unless they are being kept with goldfish, or species specific tanks, I just can't see them being kept that cool. While the 10 gallon may be small for these 3, it is cooler 77 than my larger tanks which I keep very warm (80-82) since I have mostly mollies. Thanks again guys!

 

Unfortunately a lot of people assume that all corys have the same requirements & don't know they can live 15-20 years given the right conditions, many don't make it to half their possible lifespan because of being kept in the wrong conditions or fed the wrong food.
If you could upgrade to a 15-20 gallon that'd be good but if you can't then yes the cooler temp in the 10 would suit them better

 

Thanks Coradee. I have bigger tanks. I just don't want to keep them that cool.I decided to move the habrosus back into the big tank since he seemed more active there. The 3 corydora paleatus seem much more active in the 10 gallon with the betta. It's probably because the temperature is 4 degrees lower or maybe because there is sand substrate, but in my 46 gallon bowfront, I never saw them except at the bottom, but here, probably because the tank is lower, they go up top and eat the daphnia and bloodworms I feed the betta. On the other hand, the habrosus seemed depressed in the smaller tank.

 

Update: I decided to rehome the paleatus to a better home (huge planted tank) and buy more habrosus. The more I researched habrosus and watched them on youtube, I became obsessed. I bought 5 habrosus online but only 3 made it through shipping (no response from seller after 5 e-mails!) so my habrosus has been living with 3 newbies in a 10 gallon tank with a betta.
Then, to my surprise, my lfs, the only truly local fish store that is not a single system chain pet store got habrosus in this week. I bought 10 babies and put them in a 10 gallon cycled tank. So I went from one lone habrosus to 14 since I posted this thread. Now, I have another question. I have 4 1" habrosus in a cycled 10 gallon with a betta and I have the 10 new .5 habrosus in another 10 gallon cycled lightly planted tank with my one other betta. I'm tempted to regroup these two pairings with 14 habrosus in one 10 gallon and divide the bettas tank (they lived divided like this for a year in the tank and are old half blind dragonscales who ignore the cories). That might be crowded eventually but it would be fine now. Some of the new habrosus are tiny closer to .25 than .5 inches.
Or I could move 3 habrosus babies from the new group into the older group (that feels wrong to me since the group of 10 shoal/school but the others do not). Or I could leave things the way they are.
The irony of me now hoarding these habrosus is that the original lone habrosus for whom I bought all these newbies couldn't seem to care less about the other 3 in his tank.
Any new advice on how to regroup?

 

I'm just incredibly jealous you can get habrosus locally! All we have in the area are pygmaeus. Lucky you!