Tank Mates! Wut Can Be My Knifefishes Best Friend?

[zeke the black ghost knife]

tank mates! wut can be my knifefishes best friend? probably so far hes in love with my lyertail. (lol he'll eat his girlfriend) can anyone PLEASE tell me wut can be his best friend! wut im aiming for is none bgk edible, none agressive and friendly, and will look good in my aquarium!
for help, heres some info

aquarium size:90 gallon
tank mates:red tail shark ,lyertail, 2 gouramis, buenos aires tetra, mollie, pictus catfish
habitat: open swimming with 3 caves and a driftwood.
type of tank:community

zeke the black ghost knife

 

[amyw2008]

I have one he is a dopey fish...
He lives (or has lived with) with Bala sharks, cichlids, angel fish, neons, Siamese fighter, mollies, guppys and plecs

 

[the biffster]

what about a plec or
a cat fish of some sort
maybe a pim

 

[Carlovel1]

Doubt he could be your BGKF's BF but a pleco, say the L177 Gold Nugget pleco is very pretty

 

[zeke the black ghost knife]

thx! ps your guppies are gonna be food.

the problem is the petsmart peeps said no plecos.