Backyard Aquaponics
A place to discuss aquaponics

I'm not definite on this but I'd say give it two or three weeks and they should loose the purple color.

I think you should see some new green shoots within about a week or 2 of adding B&B+Seasol. The worst of the purple leaves might not change much, and eventually drop off.

The reason I'm thinking the purple will go away is that these are mobile nutrients but it wouldn't surprise me either way. Since Gunagulla's been doing the blood and bone for awhile I'd say he's more likely to have it figured