Hi JohnnyMax,
Good to have you here. Good looking pond and great photo with munchkins too. Looks like you have a really nice mix. I like that you introduced some small prey like the Hyallela Azteca, PK shrimp, and Gams. Not sure what to suggest cause I don't know if it can be improved. I say put in what sounds fun and just enjoy the pond with your family.
I am curious, have you transplanted plants into your pond? Also, your source of gams and shrimps, were these cultured or collected from the wild? If you collected them, the LMB and Bowfin may have been introduced with Gams as they occupy the same habitat when fry. Also, Bowfin eggs and even the yolk fry will attach to plants. This has commonly transported Bowfin to new water.
The mosquito fish and shrimp came from a pond in a local park.
The Bluegill perch & Channel Catfish were purchased.
I have been very careful not to introduce and aquatic plants and that I do have is more of a hair algae.
The bowfin just showed up a couple of years ago.
I have shallows and long flat ditches that are part on my pond system. I feel eggs attached to birds legs while walking in shallows of other ponds and they transferred them to my pond while walking through grass on my shoreline.
I have a 700' ditch that runs along my west property line. It tees into my pond. The ditch is dug flat, so it always retains water. This ditch has two purposes. One to be a breeding ground and two to catch runoff and direct it to my pond.
I will try to capture pictures from Google earth of the pond....
