I finally got a picture, remember the post I had ages ago. It's quite fluffy now, probably fungus. Here's the picture, does anyone know what it is?
Click for larger photo.
You can buy tanks with the heater and filter in, but you won't get the airstone which you need with using meds and a pump.
Fungus can grow on dead tissue, can't make the pic out to much with the fungus growing over it.
It was just like that before, but sort of red. I have a filter, heater and airpump. I'll just move him over when i've sold some of these fish and have the space to transfer the remaining to my other tank.