I have a pair of mature clowns that I have owned for 5 years (and they were a couple of years old when I got them). They have always been a mated pair and have always been exactly the same colour as each other. Over the last couple of weeks, the female has gotten noticeably and markedly darker (her usually bright orange areas are becoming black, particularly along her dorsal aspect). The male is the same colour he has always been.
There is a single anemone in the tank (we believe it is a Borneman anemone) and it has been in there and has been the host for this pair for at least 4 years.
Tank: 46G bowfront
Parameters: pH 8.2, SG 1.025, KH 300, Nitrates and Nitrites both undetectable, phosphates undetectable.
Recent changes: lighting massively upgraded, pumps moved around, generally much better tank maintenance going on over the last month than these clowns have seen in their lifetime, whole tank seems to be thriving.
Please forgive the picture quality and the sediment in the water, we had been messing with a pump and blew half of the sandbed into the water.
Questions:
1. Any idea why she is changing colour?
2. Could someone ID them for us? The person who gave them to us only referred to them as clowns and I am ashamed to admit, I don't even know if they are perculas or ocellaris.
There is a single anemone in the tank (we believe it is a Borneman anemone) and it has been in there and has been the host for this pair for at least 4 years.
Tank: 46G bowfront
Parameters: pH 8.2, SG 1.025, KH 300, Nitrates and Nitrites both undetectable, phosphates undetectable.
Recent changes: lighting massively upgraded, pumps moved around, generally much better tank maintenance going on over the last month than these clowns have seen in their lifetime, whole tank seems to be thriving.
Please forgive the picture quality and the sediment in the water, we had been messing with a pump and blew half of the sandbed into the water.
Questions:
1. Any idea why she is changing colour?
2. Could someone ID them for us? The person who gave them to us only referred to them as clowns and I am ashamed to admit, I don't even know if they are perculas or ocellaris.

