You might try ag-lime first. It is cheap and generally good for the water. I used eight bags of barn lime from Tractor Supply at $3 a bag. Disbursed it from the shore.

I have East Texas red clay and it was a mess. Cleared right up.

4 acre pond 32 ft deep within East Texas (Livingston) timber ranch. Filled (to the top of an almost finished dam) by Hurricane Harvey 9/17. Stocked with FHM, CNBG, RES 10/17. Added 35lbs RSC 3/18. 400 N LMB fingerlings 6/18