I purchased two azuls about a month ago, about 16 and 18”. One has developed what looks to be popeye? Neither of them seem to be eating much either. Weekly water changes 20-40%, water parameters are good, in a 300 gallon with a 55 gallon sump at 1200 gph. The only other fish is an 18” RTC who is doing very well. Really confused as to what the issue could be!

