Hi Bob , it's posible i did have a t-shad die off since i have not seen a single one , should i try again if so whate time of year or water temp.also due to the water clarity and to late to fertilize would aqua shade be recomendid . I do have some algie growing in the shallows do the water being about 2' low . as of 2-13-O3 water temp. is 50 degrees. in canton tx. Thanks Harvey
