Welcome to the Nikon's Family.
I would suggest get a used AF MICRO 60mm 2.8F (the older model) with a polarizer filter. With the aperture at F2.8 you can use a higher shutter speed, so you can "freeze the fish".
Approx. $350 with filter.
sorry i went camping for more than a week, no chance to reply, yes the tank was sold at one point, but now back for sale, reason being is buyer thinks mover is too exspenive.
Makham (hwy7 and kennedy)
180 gallon tank 1.5" drain on the left top 6'x2'x2'
( glass center brace & glass tops )
there is a patch on the right bottom it used to be drain.
wood stand
30 gallon acrylic sump
quietone 3000 return pump 750g/h
Hydor Inline Heater (300 Watt)
Coralife...