White Patches

[Durbkat]

This morning I had my desk lamp on (my 55g is next to my desk) and my common pleco was on the front glass next to the glass and I noticed a white spot on the base of one of his fins and this worried me but couldn't look at it long as I had to go to school but when I just came home to see it to try and describe it to you all, it isn't there anymore I checked all his fins but yet its not there. Could it have been just a reflection off the light or something else? Also I need to know since I'm going to lps today and if this is some kind of fungus or something inform me of some medicine I should pick up, also could I get my angelfish today. It's been a week since I add 3 long finned black widow tetras to the tank and the last week the test results were
Ammonia- 0
Nitrite- 0
P.H.-7.2
Nitrate 10 or 20
So could I get the angelfish as long as the water stats are still good?

 

[WILDER]

If water quality is good when you have it tested it should be fine to add the fish, the spot could of been a reflection if it's gone, if the spot was fluffy on the fins it could of been columnaris.

 

[Durbkat]

Yes it appears to be gone because I didn't see it today and I was able to look at both sides of him and the tank light was on so I could see him more clearly. Thanks for the quick response Wilder.

 

[WILDER]

Your'e welcome durbkat.