Vaccuming wont hurt just add the water a bit at a time.vaccuming should also be done at least every 2 weeks and I reccomend once a week with weekly 25% water changes.
You might also want to try some broad spectrum antibiotics in the water.
Sorry to hear that your oscar isnt getting better and it sounds like you are doing your best to save the poor thing.
Dont worry we all here know how you feel about being more than a fish.I love my oscars better than most people(my wife and kids excluded)
Anyway all you can do is keep trying, keeping up the water changes etc and hope for the best.
I truely wish you the best with your oscar and keep us informed.
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TONY
Australian and proud of it!! My Cichlidfish.com Home pageNo Feeder Naziworldcichlids.com[This message has been edited by oscar2001 (edited 05-05-2002).]