Is My Plec A Bit Stupid?

[Minstrel]

I have put in courgette, cucumber, prawns and still my plec has not cottoned on... Am I doing something wrong? Is there any other way to coax them on?! OH is getting cross with me wasting food... More so since I want meant to use said food for us

 

[Liquid skills]

Lol they are nocturnal so try feeding at night this should work

 

[Minstrel]

Lol they are nocturnal so try feeding at night this should work

I have popped it in about 30mins ago and will leave again over night but otherwise I am all out of ideas... Stupid fish

 

[Fishy friend2]

My bottom feeders didn't start eating the food that I put in for a week or two