Help with hammer

[mcgallagherc]

First picture i took yesterday asking about circled area, second picture was just a few mins ago when i took a peek at tank, never seen it this small. Thanks in advance

 

[blaxsun]

It's not happy about something, but it doesn't look like BJD. Have you changed anything recently? How are your water parameters?

 

[mcgallagherc]

It's not happy about something, but it doesn't look like BJD. Have you changed anything recently? How are your water parameters?

I'll get water tested first of week and no nothing has changed. Just never seen it that small as it's usually very full and lively

 

[mcgallagherc]

I'll get water tested first of week and no nothing has changed. Just never seen it that small as it's usually very full and lively

However, that being said I don't have lights on a timer so somedays they fluctuate in operation time and lighting