Replace spotted cory?

dimsem

Getting Feet Wet
Dec 25, 2004
43
0
0
Norfolk VA
I have a 12 gallon tank (Eclipse 12). Right now I have 5 neons, 2 dwarf gourami, and a spotted cory. The cories are the only fish that I have had any trouble keeping alive (aside from one neon that died immediately upon being introduced to the tank). I've had the tank going about 4 months. One cory died about a week after being introduced, when I was going through a rough cycle (Bio-Spira was not working as quickly as my reading had led me to expect, even though I used two packets from different sources). I replaced it. Another died maybe six weeks ago, for no apparent reason (the cycle was well over at that point). The one I have left looks to be doing well. The fact that I've read that they like to be in pairs makes me think I should get another. On the other hand, I'm just a little worried that as the fish grow a little I might not have room for anything else. Plus, of course, the fact that I've lost two might itself be a good reason not to get more.
 
Did you confirm your cycle being over with water tests?
What were the numbers?

IME, I find that corys are very sensitive to their initial introduction to your tank.
How did you introduce your corys?
They don't like really drastic water changes either.

Once you got them established, they are very hardy fish!
 
The cycle is done, I am pretty sure. Ammonia and nitrites are zero. I iontroduced all of my fish but putting the bag in the tank for 30 or so minutes to equalize temp and then transferring by net.

I was suppose that the question that I would be most interested in getting opinons on is whether I would be pushing it to add another fish to my tank. My impression is that the Eclipse 12's filtering system is adequate but spectacular; I don't want to overload it.
 
Most people here will tell you not to.

Personally, I think you should get a few more of the same species.
Corys like company.
The more the merrier.
Regular spotted (I'm assuming "peppered") corys don't grow that big...maybe 2" at the most.
IME, you need at least 3 or 4 of them to keep them happy.
 
You would be a little overstocked, but I would go ahead and get 2 more of the same cory, but give it a few weeks to make sure the tank is cycled and everything has a chance to settle in. This just means you should do more/larger water changes since the tank is overstocked, but as long as you keep up a good maintenance schedule and the fish seem ok, it should be alright!
 
Weird, it's interesting how other people have problems with cories but I've never had a cory die on me...

Do you add your fish one or two at a time? If you do it all at once then it will be too much on your biological filter so the ammonias and nitrites will rise. If not, then ignore this .

And definetely get more than 1 cory. They are most comfortable in groups. Get at least three.
 
f8ldzz said:
Regular spotted (I'm assuming "peppered") corys don't grow that big...maybe 2" at the most.
IME, you need at least 3 or 4 of them to keep them happy.

peppered corys and spotted corys are different. I thought they both grew around 2.5'' to 3''...
 
WinterWind said:
Do you add your fish one or two at a time? If you do it all at once then it will be too much on your biological filter so the ammonias and nitrites will rise. If not, then ignore this .

I did initially add all of my fish at once, but remember, I was using Bio-Spira. I wasn't 100% satisfied with the results---maybe my expectations were just all wrong---but I was following the directions.
 
I've read of a couple of instances of bio spira not doing as good of a job as it is supposed too. I would get 2 more corys and see how it goes!
 
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