Good luck with your Moorish Idol. :cheer: I have dreams of keeping one some day in the future, despite the slim chances. Nevermind the naysayers, some people are sunshine and others are rainclouds
I have been trying to find information on keeping them and perhaps compiling it in a thread. I understand that very little is known.
It sounds like your fish is eating so maybe you don't have a problem there. Hopefully you will get it to take a varied diet, as I understand that even if they do eat they suffer from nutrition problems. But I will add that I just read in a magazine that yellow tangs (and maybe this includes other fish from the Zebrasoma family?) help to get the moorish idol to feed by serving as a dither fish. Maybe this information will help you in the future.
Also I recall someone on here stating that his moorish idol died when he changed his carbon to chemipure. So apparently they can be very sensitive to changes in water quality/conditions.
I also read that moorish idols have been bred in captivity here in the US, but the fry did not survive, which I believe was due to a long pelagic stage. So perhaps there is some hope for you and your fish.
Well hopefully this thread will bring something more to the table other than "your fish will die." Again I salute you for taking on the challenge. I hope you keep up updated on the situation. :cheer:
On a side note, why is the assumption made that since you decided to take on a moorish idol that you didn't know what you were getting into?