If she's getting worse, try treating her with an antibiotic (something that says it treats internal bacterial infections will do). If you're in the US, maracyn apparently works on this. Spasms as you describe are characteristic of a flavobacterium infection and sores can also be caused by this.
What are your water parameters like? (ie: ammonia, ntirite, nitrate). Get a test kit immediately if you don't have one already! Even she's getting worse due to secondary ifnections, the antibiotic should help.
Also, what's the temp. of your tank? Make shure it isn't too high - lower it to about 77 deg F (very gradualy).
I mentioned how you sex these fish in my previous post but here are some picture examples:
http
/www.aqualandpetsplus.com/Gouram104.jpg - female (ignore coloration - this species comes in many color morphs and this particular female is in breeding condition and very bright)
http
/www.painetworks.com/photos/ht/ht2945.JPG - male (again, the color is irrelevant)
Last thing - what kind of algae eating catfish do you have exactly...? If it's not a plec, I'm guessing it's not even a catfish. Perhaps it's one of these:
http
/www.tropicalfishfinder.co.uk/dbimag...moneri_3(1).jpg
or
http
/www.azgardens.com/images/Gold-Algae-Eater.gif
Re-home it if you do - they grow large, eat smaller fish, become increasingly aggressive and stop eating algae as they mature and they are known for sucking on the slime coats and eyes of other fish. Fish that are shaped like gouramies or angels are especialy at risk from these fish.
If you are certain it's a catfish, it'll probably have an adipose fin:
http
/web.uvic.ca/~reimlab/nikki/salmon.GIF Whereas the sucking 'loaches' mentioned above do not.
For example, this pleco catfish has an adipose:
http
/www.aquavisiontech.com/images/plecostomus_albino.jpg
As does this beautiful zebra plec here:
http
/www.wharfaquatics.co.uk/images/zebra_plec.jpg (these don't eat algae mind you)
and this pretty baby panaque:
http
/nscontact.com/Images/Produits/G/327_1.jpg
You get the idea...
You can probably find what it is here:
http
/planetcatfish.com/ But you'll have to look around a bit
