I have a 5-6" black aro who looks like he is developing HITH. Is this common for them Ive had silversand never seen anything before. It is in a 38g with one of those crappy eclipse filter hoods on it and a big powerhead. Is there any meds I should use or just stick to water changes and salt. His appitite is great and very active I will try to get a pic up so someone can clarify what it may be