First post long time lurker love this site but I need some help please I have 3 fish that have what looks like a white head on them. The Oscar has it on his chin and a red swollen lump in his mouth. The Teapa(Paraneetroplus gibbiceps) has two spots both on his side can only see one in the pic the other is under his pectoral fin. The Blood Parrot has a spot on his abdomen couldn't get a close pic sorry. This all started 3 weeks ago with Teapa and is spreading. I've been doing 75% WC a week sine I noticed it, I usually do 50% WC a week. Tank is 110 gal 20 gal sump, no new fish, no live food and everyone is acting normal. Ideas of what it is and what can I do cure/prevent this from happening. Thanks in advance
nitrate-15
nitrite- 0
hardness-75
kh-120
ph-7.2
nitrate-15
nitrite- 0
hardness-75
kh-120
ph-7.2
