Hi guys, within the span of two days 5 of my 6 cories have gone belly up....and the one remaining isn't looking too good. I checked for nitrites and ammonia, both are 0...Tank temp is 28-29C. I do 10% daily water change (it's a heavily planted discus tank) and 50% weekly water change, so the water is clear. I do have some algae on my leaves but the rest of my fish are doing fine... All my other fish and especially the discus are eating like little pigs and have wonderful coloration...
I've had the corys for a little over 2 months and they've done very well during that period of time. Food are flakes, Tetrabits and frozen blood worms.
Tank is 75G AGA with Canister Filter.
Any ideas? I'm at my wits end... Thanks!
Panda & Pepper Cories dying! Help...
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Pinoydiscus
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MatsP
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I think one main problem may be that you have quite a high temperature for those Cory's. Panda's are supposed to be below 26'C, and Peppered are supposed to be below 25'C.
Higher temperatures will stress fish, and the result is that they catch illness easier and theri metabolic rate is increased, which means that they need more food for a given amount of time. This can sometimes cause slow starvation because the fish simply can't process enough food to keep up with the needs.
It could of course be several other things, but having too high a temperature will definitely not help any fish, just like keeping them at too low a temperature will be bad for them.
I suggest you find some cories that demand higher temperatures. If you don't mind them not being exactly Corydoras, the Brochis Splendens are living in temperatures up to 28'C, so should be ok in your tank. They grow quite large tho', so if you want them to stay smaller, I suggest you look through the Cat-eLog, or start another thread on this forum to ask about that. [I did have a quick look at different Corydoras, but I couldn't find any that like higher temperatures].
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Mats
Higher temperatures will stress fish, and the result is that they catch illness easier and theri metabolic rate is increased, which means that they need more food for a given amount of time. This can sometimes cause slow starvation because the fish simply can't process enough food to keep up with the needs.
It could of course be several other things, but having too high a temperature will definitely not help any fish, just like keeping them at too low a temperature will be bad for them.
I suggest you find some cories that demand higher temperatures. If you don't mind them not being exactly Corydoras, the Brochis Splendens are living in temperatures up to 28'C, so should be ok in your tank. They grow quite large tho', so if you want them to stay smaller, I suggest you look through the Cat-eLog, or start another thread on this forum to ask about that. [I did have a quick look at different Corydoras, but I couldn't find any that like higher temperatures].
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Mats
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Pinoydiscus
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High temps
Thanks for the opinion guys... I really want to keep some cories because they're good bottom cleaners and their funny antics are fun to watch...
I'm just wondering why they all died off in the span of two days. My temp readings were pretty consistent during the said days. Low of 28C, high of 29C... As you said, there could be a host of reasons but I hope to be able to keep some in the future. I've seen some bronze cories, are these hardier? From the Cat-elog, they seem to like cooler waters too...
Anyway, thanks for the responses!
Happy catfishkeeping! =)
I'm just wondering why they all died off in the span of two days. My temp readings were pretty consistent during the said days. Low of 28C, high of 29C... As you said, there could be a host of reasons but I hope to be able to keep some in the future. I've seen some bronze cories, are these hardier? From the Cat-elog, they seem to like cooler waters too...
Anyway, thanks for the responses!
Happy catfishkeeping! =)
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MatsP
- Posts: 21038
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- Spotted: 187
- Location 1: North of Cambridge
- Location 2: England.
Bronze cories do like cooler water, just like most cories.
As I mentioned earlier, you could try with some , they aren't too difficult to find (you may have to ask the LFS, but they should be able to get them from a distributor). They look very similar to cory's, and they behave pretty much like cories. The biggest differences are the temperature range and they grow to about the same size as the bigger of the cory species.
Another few species you may try is , or . They all have water temps of 28'C or higher. C Leucomelas is supposed to go up to 30'C, so is perhaps the best choice.
I have no experience with any of the cory's listed above, but I have 5 Brochis Splendens in my tank, but I have a temperature of 26'C in my tank.
Also, I have no idea of how easy or hard the above species are to find. Brochis Splendens is commercially bred, so they should be available with some asking around. I think C. Sterbai would be another relatively common species, but it probably depends a lot on how popular they are in your country... Importers tend to import fish that sell, and since this varies from one country to another, something that is common in one country may be almost impossible to get in another country.
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Mats
As I mentioned earlier, you could try with some , they aren't too difficult to find (you may have to ask the LFS, but they should be able to get them from a distributor). They look very similar to cory's, and they behave pretty much like cories. The biggest differences are the temperature range and they grow to about the same size as the bigger of the cory species.
Another few species you may try is , or . They all have water temps of 28'C or higher. C Leucomelas is supposed to go up to 30'C, so is perhaps the best choice.
I have no experience with any of the cory's listed above, but I have 5 Brochis Splendens in my tank, but I have a temperature of 26'C in my tank.
Also, I have no idea of how easy or hard the above species are to find. Brochis Splendens is commercially bred, so they should be available with some asking around. I think C. Sterbai would be another relatively common species, but it probably depends a lot on how popular they are in your country... Importers tend to import fish that sell, and since this varies from one country to another, something that is common in one country may be almost impossible to get in another country.
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Mats
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squid
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Re: Panda & Pepper Cories dying! Help...
hi benjie...Pinoydiscus wrote:Hi guys, within the span of two days 5 of my 6 cories have gone belly up....and the one remaining isn't looking too good. I checked for nitrites and ammonia, both are 0...Tank temp is 28-29C. I do 10% daily water change (it's a heavily planted discus tank) and 50% weekly water change, so the water is clear. I do have some algae on my leaves but the rest of my fish are doing fine... All my other fish and especially the discus are eating like little pigs and have wonderful coloration...
I've had the corys for a little over 2 months and they've done very well during that period of time. Food are flakes, Tetrabits and frozen blood worms.
Tank is 75G AGA with Canister Filter.
Any ideas? I'm at my wits end... Thanks!
i also lost cories before/.. because the temp was also high... they like low temps
