There's a bunch of threads on what BN like, and it seems like most things are on there. I didn't see anywhere that there was a list of things to avoid, so I'd like to start one.

Meat
Some BN need meat protein in their diets, but I'd avoid adding most meats to a tank for them to eat. That's for a couple reasons. The first being meats will foul water in the same way a dead fish would. That's partially because meat takes a little longer to eat than produce does. If there's enough mouths to consume it before it can foul the water then that isn't an issue, but the type of meat protein can be. Fish flesh would be suitable, but avoid any meat that has a fat in it that you would need to heat up in order for it to melt (like beef or pork). Fish are unable to digest it properly. If you're serious about wanting to add meat protein then stick with fish and bugs. My personal thought is that there are enough prepared meat protein foods on the market that are far more convenient and safe then risking experimenting with table scraps.

Anything mushy
Things like mashed potatoes would foul water quickly. I'd tend to guess noodles would be on that list of mushies, too. If you're not sure if it would hold up, try putting some in a glass of water first to see how it does. You don't need to be clogging up the filter.

I've never heard if anyone has tried citrus.

What else have you guys heard for feeding no-nos.

Good idea andy a fresh idea...i will have a good luk into this......in the mean time anybody else care to add...

Dose anybody know the benifishal diference between zukini and cucumber

No difference as far as I am away

BTW several of my BN's are in my Discus tanks and they eat the Beefheart I feed, I just make sure I also put plenty of Algae Wafers etc in, they also like FBW and FBS, granules,

tbh anything that hits the tank

I think a mixed and varied diet is best

mmmm what not to feed. high protien on a regular basis the only meat i put in my tanks is raw prawns to condition my females.

Cat food :|
In all seriousness though, this is a good thread, will be keeping my eye on this one!

My BN's also go mad for my homemade beefheart mix. But as with my discus, they get a good varied diet.
Courgette doesn't last long in my tanks, especially when the clown loach spot it!