Panda Corys don't last long in my tank?

I don't know why, but whenever I get panda cories, they don't last long in my tank(20 gallons). A month or two at most. I don't know why.

My pH is at about 7.0, Ammonia 0, Nitrite 0, and Nitrate about 5ish. Temperature is at 80F.

My tank has been set up for about 6 months, It is fully cycled.

The tank has 6 panda cories, 4 rummynose tetras(I know I don't have enough, I will be getting more soon. . .) , 5 neon tetras a blue ram and a Nerite Snail.

I clean the tank and do a 30% water change per week. Clean the filter every month.

I am feeding the cories, omega one sinking shrimp pellets.

The tank is 20 gallons and has a marineland penguin power filter, and it has a heater.

And yes, I do know about the aquarium nitrogen cycle.

What do you think Is the cause of this problem?

 

Panda cories are quite sensitive, and any indication of even the slightest sudden change can have a bad side-effect on them, Including death or lethargy for a while. They appreciate mature, planted and near perfect water conditions regarding parameters.
so a note for water changes. Make sure that you siphon the water back in so it goes at a slow pace and doesn't suddenly change the hardness
PS:most fish love a varied diet so It would be great if you could add frozen or live foods in there diets and possibly even some algae wafers

 

Thanks for the quick reply. My tank is planted and has been set up for 6 months(is this consittered mature? ) without change in pH or hardness. I will try doing waterchanges more slowly now too.

PS: I feed 2 kinds of omega flakes, NLS Pellets and frozen brine shrimp as-well . I was talking about what I feed the cories specifically. Sorry for the confusion.

 

Hmmm. Considering that they only tolerate a small range of water parameters, maybe yours are a bit off.
Here is a link to a good care sheet about them

 

I have read over that site you gave me(great link by the way, helped a lot )

I have a few problems:

1. Panda cories perfer a temperature of 70-78F and mine is 80, so I will lower the tempurature.
2. They can not tollerate medication and I just medicated the tank for ich(none of the remaining pandas had any ich, so this is not the cause of the deaths) so next time I won't use medication, I will treat it the old fashioned way(Lots of Aeration, high tempurature, and daily water changes/gravel vacuums.
3. They perfer a diet of live or frozen foods most of the time, so I will feed them frozen food a lot more often.

Other things like pH and hardness are fine.

 

Once you get those fixed, then they should thrive in your tank.
Good luck
I hope I helped out!

 

You helped a lot Thanks

 

Your welcome! I hope your fishies do better soon!

 

I just got some panda cories and I'm so in love with them. They are adorable. Thank you so much for this info. This will help me make sure that my panda cories get great care.

 

Panda Cory's can be sensitive maybe try some other types! You have a lot of options

 

I got a question for you... How fast are you adding the fish, my friend added six at once and they died over the next few weeks... I hope this helps. Panda Cory's are sensitive, but I would not walk away from that... I would wait about a month or so and make sure that the tank gets the ich cure out before you add Cory's!!
P.S.... your profile says that you have five panda Cory's, so sorry if you already added them and this post is kind of pointless!!! lol

 

Yes I already added them
I had Ich about a month ago, so I think I am fine.
Thanks

 

Alright, well I hope everything foes well then!!!