The original post was from 2004 and showed an angelfish with a pectoral fin tumour. There is no cure for it.
pectoral fin of the angel fish
I just noticed mine has one it's a large pink growth it has two small white spots on it where the fin attaches... I'm so
The growth looks the wrong colour for a tumour and could be an infection.
You can try salt (2 heaped tablespoons per 20 litres of water) for 2 weeks and see if it helps.
You can also try a broad spectrum medication that treats bacteria and fungus.
Melafix might help but in my experience it doesn't do much except make the fish tank smell like a wet Eucalypt forest.
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If you use Melafix or any medication, do the following before treating.
Work out the volume of water in the tank:
measure length x width x height in cm.
divide by 1000.
= volume in litres.
If you have big rocks or driftwood in the tank, remove these so you get a more accurate water volume.
When you measure the height, measure from the top of the substrate to the top of the water level.
You can use a permanent marker to draw a line on the tank at the water level and put down how many litres are in the tank at that level.
There is a calculator/ converter in the "FishForum.net Calculator" under "Useful Links" at the bottom of this page that will let you convert litres to gallons if you need it.
Remove carbon from the filter before treating or it will adsorb the medication and stop it working.
Wipe the inside of the glass down with a clean fish sponge.
Do a 75% water change and gravel clean the substrate. The water change and gravel cleaning will reduce the number of disease organisms in the water and provide a cleaner environment for the fish to recover in. It also removes a lot of the gunk and this means any medication can work on treating the fish instead of being wasted killing the pathogens in the gunk.
Make sure any new water is free of chlorine/ chloramine before it is added to the tank.
Clean the filter if it hasn't been done in the last 2 weeks. However, if the filter is less than 6 weeks old, do not clean it. Wash the filter materials/ media in a bucket of tank water and re-use them. Tip the bucket of dirty water on the garden/ lawn. Cleaning the filter means less gunk and cleaner water with fewer pathogens.
Increase surface turbulence/ aeration when using salt or medications because they reduce the dissolved oxygen in the water.
