Harold - look at that sand under some type of magnification like a Jewelers loop. Make sure it isn't sharp. I don't use sand so I'm not an expert, but aren't you suppose to keep the depth to about a quarter inch so it doesn't go anoxic? It looks pretty deep in your tank. Then when you stir it up ...

I remember i saw in the past that planaria worms, if they are a lot could attack and eat corrys barbels. If you feed the fish with tubifex you could infect your tank with planarias, because planarias kill and eat tubifex too and live in their colonies. Try to observe your tank in the night for ...

Just another update. So, after 5 days of melafix treatment, the grey marks on the cory have disappeared. The barbels look pretty much the same, but I guess it will take a lot more time. Would maintain the WC schedule and wait for signs of improvement. I have also noticed an increase in activity ...

Didn't see this mentioned anywhere in the post, but there is an obvious bacterial infection. The third pic in the post, single cory sitting on sand facing the camera, shows the start of obvious bacterial ulcers. Most likely, the same infection is causing the deterioration. I see. So that grey mark ...

What exact type of sand is it? One of the corys seem or have greyish spots on the head as well. Is there a good waterflow ? I am not 100% sure, since it is not stated on the package, but I think it is a kind of garnet sand. This sand is widely used by cories, plecos, and eartheater keepers in my ...

Hi Harold, Sorry to learn about your struggles with the sterbai. As far as I know, there are very few (or no?) causes of barbel loss beyond sand issues, water quality and infection. So my thought is this - even though everything looks good, something is off, perhaps in your case a combination of ...

Hello, http://i.imgur.com/IWlJOHw.jpg I cannot deduce why my cory's barbels are keep getting shorter and shorter. There is a total of 8 Sterbai cory (5 adult, 3 juvenile) in my 90G tank. Apart from the short barbel, they seem to be otherwise healthy. They seem to have a bit problem locating where ...