Glass Catfish Changing Colour

[UK_Dave]

1st of all, tank info:

70 UK Gallon
Stone substrate
pH - 7.5
NO2 - Non existant
NO3 - 10 at the most, even then thats being generous as its virtually non existant again
Ammonia - 0

Anyway, the other day we bought 3 of these little guys, done the usual introducing of then fish etc.

The next day we noticed the larger of the 3 were black around the edges, the day after he was dead.

A fortnight later, another starts turning black around the edges, the next day he was dead.

So now we only have 1 left....I would like to add more for him as he is probably lonely now, but before I do, I was to see if maybe I made an error, or not given him the right food etc

Anyone got any ideas if there is anything special your meant to do with these please? I really dont want to spend out for more, to kill them by accident again

cheers


edit: I just thought, could it be that the white spot I was treating in the tank could of done this? As I started my treatment not long after getting them as thats when I noticed my loaches had the problem

 

[OpalineAqua]

It doesn't sound like white spot. But when you say it turned black around the edges, do you mean the edges of the fins or the edges of it's body? Because I know of one disease where the bases of the fish's fins turn black and it can kill the fish. It's called China disease and is VERY rare but the only thng I can think of for the symptoms.

 

[indigoj]

Glass cats are extremely sensitive to meds (IME) and to stress. What other fish are in there and how much plant cover do you have. A school of 6 or more is preferable as they feel much safer in numbers.

 

[UK_Dave]

Sorry for the late reply, been away over xmas....Anyway, from what I can tell, it seems that I may of been a bit silly in the explaining, turns out that they edges of the body went black as its normal for them, as they are DIFFERENT from the original glass ones I bought, I had got them from the tank that said "Glass Catfish" and then when I went back to get a few more, they had added another label saying "Amazon Glass Catfish" or something, which were the newer ones we bought! Even though they looked the same to the untrained eye....Except they got their black outlines later on, and their head was a slightly different shape

Ok, I still dont know how I lost them, but I now only have the 1 of each type, and they dont hang around each other like the ones that were the same did, which is annoying as they both hide away in different areas.

I cant go out and get anymore at the moment as there is a chance we may have to move, which im not looking forward to as ive got the tank the way I like it, but I could end up losing fish if I cant transport enough of the water with me!