hello
i have two tiger oscars and two plecos in a 75 gallon tank
i recently bought the second pleco and got ich in my tank right after.
i chose to go ahead with the salt and heat to treat it and im on my third day and it is all gone so far fom what i can see.

im doing water changes every 3 dys of 20% untill im done treating the tank for ich and i dropped the water level two inches and added 1 teaspoon of salt per 5 gallons and have had the the water temp at 89 degrees Fahrenheit for the past three days tomorrow on the forth day i will be dropping it down to 86 and keeping it there for next 11 days with salt still. so now that i took care of that problem i have encontered a new one. both oscars were purchesed at same time and on is 4 inchs and other is 3 ichs maybe and i dont understand why one is growing faster than other? but this morning when i awoke i noticed two ball point pen size holes maybe little bigger above the eyes of the larger oscar that wernt there last night. the holes are clean no blood or goo coming out from them should i now worry it has hole in head? or do you think it is an injury from over night? can hole in head just come over niht? both oscars still eat and act normal just worried about holes now

could the ich have brought this on?
the plecos are 2.5 inchs and other is 4 inches.
water has always been tested once a week after weekly water changes of 25% and everything reads normal? i dont get it? this one little pleco ruined my life hahaha :angry:
can you please give me your advice on what you think? it would be a big help and hopfully calm my nerves thanks