mr williams
Fish Crazy
My Oscars are a permanent faded colour, even more so during a water change. What information do I need to give for you guys to tell you what may be making them so stressed out.
My Oscars are a permanent faded colour, even more so during a water change. What information do I need to give for you guys to tell you what may be making them so stressed out.
People do have jobs as well as being fish fanatics. Have patience and they will help for the love of fish

my guess would be that they're pale from stress. are all of them pale or just two of them? if one of them is generally darker than the other two, then its probably because he's the dominant oscar and is bossing the others around too much.
i'd also be concerned about how they're getting along with the mbu. i know that you've said that they're fine together, but you can't be watching all the time. how do the oscar's fins look? nipped fins is one of the first signs of fishy aggression.
i also hope that this is not your final tank, as you will have too many fish in there once they are all adults. the mbu will also need a much larger tank (absolutely no smaller than 6x2x2 and ideally no smaller than 8x3x2).