Anthropic, below are the conditions prior to the turnover:
Started fertilizing in March, 40 LB powder fertilizer (10-52-4 I believe). SE Pond did fertilizing and doubled normal 20 LB (4 lbs/ acre) application in March to jump start bloom. Same process as last 2 years BUT my alkalinity was much higher this year.
Had a beautiful bloom since early April and unusually warm late Winter and Spring. Secchi disk reading of about 18-20". I told SE not to fertilize a couple of weeks ago when they were scheduled to come. They came anyway and agreed that no fertilizer should be applied on that route.
Alkalinity was low (12 ppm) last summer so I applied 25 tons lime in October. Alkalinity was in the 40 ppm range last time I checked in early March.
Pond was stocked with 4000 CNBG 1000 RESF, TFS and FHM in October 2014. Stocked 375 F1's in June of 2015.
We had harvested around 300 bream past 2 seasons but no bass. Had electro survey scheduled for this Friday to develop a harvest plan for bass starting this spring. Had caught several CNBG in the 1.2 lb range. Caught 5.9 lb F1 in late March (full of eggs).
Have 2 feeders and use Aquamax 500. Only feeding about 40 seconds a day/feeder the past few months. I retired in March so cutting back a bit on non essential expenses
I saw 1 dead TFS on Saturday and had never seen one before. Didn't think anything of it. Friday, Saturday and Sunday were the 3 windiest days that I can recall strung together in pat 10 years, followed by a cool front which brought 3.5" rain Sunday morning. The turnover occurred Sunday night resulting in the dead and dying fish on Monday morning. Turnover also killed the bloom and water is tannic colored and very clear.
Hope this helps....it helped me to retrack the steps and conditions. I think the only thing missing from my equation was aeration.
Thanks
Ronnie
