Posted: 21/04/2015 at 21:33
If you have the time, inclination and money, then of course you'll be drawn to Chilli Focus or similar, although the jury is still out whether it's really better than standard or 'generic' tomato feed. I grow tomatoes as much as chillis, and find the shared feed is ok.
I would also say tomato feed for chillis will be dramatically better than standard plant feed, primarily due to lower nitrogen.
And especially if it is NPK+ not just NPK.The main plus difference will be in magnesium, although possibly other micro-nutrients. If there's a mention of seaweed, it usually means there will be magnesium as well, not just basic NPK, but as always, read the label.