Hey Albert !
Yup all from my tank , the lens is Sigma 150 mm , the older version with no OS.
Btw how is the HM growing for you ?
They are getting taller. i'm hoping to moove this bunch to the new 55. just got gravel for it yesterday and new lamp fixtures, two 20w LED Floodlamps running 6500-7000K.
I was saving up for a 90-100mm but your 150mm really makes a leap forward with how closeup you get. my shrimp always run away and i can absolutely never photograph my SAE... LOL (working with a 35-55mm) at the moment on a Nikon D50