We have a GroMore hose feeder which we use frequently for our tomatoes, fruiting beautifully now, but does feeding sweet pepper plants cause them their flavour to deteriorate?
I'm not sure what a GroMore hose feeder is but I feed and fertilize my peppers during the growing season and have found they grow better with periodic feedings. I have never noticed a diminishing the flavor.
Sorry, it's not called GroMore, it's called MiracleGro. It's a blue, slightly damp powder fertiliser that is put into a plastic jar that attaches via a feeder gun, attached to a hosepipe. Effectively one can water the whole garden and feed the veg, fruit and flowers in one go, over about 15 minutes. It makes light work of feeding plants, and isn't an expensive device.