Corys Bleeding!?!

**cocoa_pleco** · 04-02-2009, 04:35 AM

sands actually the best for corys, its easy on their barbels

is it round sand or triangular like sharp sand?

**OscarFan** · 04-02-2009, 04:40 AM

all sand is abrasive. They like it but it is not good for them their kinda like crack monkeys

Their natural habitat is soft leaf litter.

**Gemini** · 04-02-2009, 04:46 AM

Its round sand. They stick their whole head in it. But I would have thought his little face would be damaged as he ferrets around for food - not near his tail. IT's always near the tail too....

**OscarFan** · 04-02-2009, 05:01 AM

Not sure but i think the area on the head is harder and the area on the belly is softer. This may not be right but its my theory.

**Gemini** · 04-02-2009, 05:17 AM

Originally Posted by OscarFan

Not sure but i think the area on the head is harder and the area on the belly is softer. This may not be right but its my theory.

Well that could be true.
I changed from gravel to sand as I thought it would be better for them. Not that they ever had any barbel issues with the gravel.
I'm going to try twice weekly water changes of 50% and see what happens. I just don't get it.!

**troy** · 04-03-2009, 01:40 PM

I think it could be the lava rock.

**Gemini** · 04-03-2009, 11:52 PM

Originally Posted by troy

I think it could be the lava rock.

I forgot about the lava rock in there. But it's only a new addition - I've been trying to get java moss to grow around it for about 3 weeks now, but I've seen these marks on my corys come and go for months. I'll take it out though if you think it's likely to cause injury.

**Sharon** · 04-04-2009, 10:37 AM

I wouldn't worry about the sand, Gemini...as long as it's not sharp. Sand is recommended for Cories. I'm not sure what is causing your problem, though. Couls one of the other fish be attacking the Cories at night when you're not looking?

**Slow Cheetah** · 04-04-2009, 12:24 PM

could it be your betta nipped the cories sides?

i also noticed the dorsal fin is split? when my cories were with my betta which nipped them one had a split very similar to that.

**Sharon** · 04-04-2009, 12:39 PM

Cories have a way of blundering into spaces where they are not wanted...they're oblivious to nastiness in other fish. If the RTS is chasing your BN, then the Cories may be a target as well....