You should get them as soon as possible. I would buy fewer larger fish to stock if you have any bass already in your pond. I have the black spot disease in my lake (60 acres). Every fish I caught had spots on them, put 200 4 to 5 inch RES in the spring of 2016 and this year I have only caught 1 fish with the spots out of 100's. Have not caught a RES on a pole they do not bite very well in my water, but have caught them with a cast net. So I know they are still there. You need to put them in for the health of your other fish.

61 acre water shed lake. bass, channel cat, black crappie, wiper, walleye, redear sunfish, blue catfish and bluegill. To many bullhead and common carp
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