John,

That's way too much feed for 33 4"-6" CC at this stage. To maintain water quality you need to use optimized feed rates.

I have a spreadsheet on feeding CC. Pretty cool, it incorporates size dependent FCR and optimum size dependent % body weight. This is the optimum grow out for 33 CC to 11.5 " in 97 day. Will take 1/2 sack of feed (20 lbs). Look for an improved version in one of my posts below ...

The equations used to optimize the feed plan came from this study.

Last edited by jpsdad; 05/24/20 09:56 AM.
It isn't what we don't know that gives us trouble, it's what we know that ain't so - Will Rogers