LOL they weren't an impulse buy. I can link you to many, many articles I have read which actually advise to keep Discus in planted tanks. Sure, there are going to be folks that don't agree with anything, but it's not like I bought them and stuffed them in a 20 gallon, uncycled tank.
And if the first two weren't an impulse buy, the second batch of four definitely wasn't. I don't make impulse buys. I learned my lesson with my RTC, who has cost about six grand since he made his way into our house.
I would hope that the posts I've made would reflect my interest in responsible fish keeping, as well as my intent to provide for these fish, even though I haven't dedicated a species tank to them.
As for the feeding, I will begin to feed them more often. Thank you for your advice, snoopy.