This may be a bit of a silly one but here goes, Can you feed your fish fruit or veg as a treat and if so what sort?? Sorry if that is stupid but i had to know.*celebrate
Depends on what type of fish you have. From your signature, doesn't look like you have anything that would eat fruit or veggies unless the shrimp would. The pleco and some of the others might enjoy some algae wafers.
Actually, to me it looks like Glyptoperichthys joselimaianus. They get to be about 10 or 12 inches I think I read. I have one in my 75 gal. He was sold to me as a gibbiceps but when I got him home I noticed the spot pattern was reversed. Here is the info page about them at planet catfish: PlanetCatfish::Cat-eLog::Loricariidae:terygoplichthys joselimaianus
Oh dear....if he is i have been sold him under bad advice...i was told he would only get to 6 inch max....no good my tank is only 33 us gallon 27.5 uk.....eeps
The fish you have, many of them will eat fruit and vegies. They may take some time to find it as being food, but when they do, they will eat it. Some good ones to try are zucchini, french style green beans (make sure it's not salted, frozen is fine), peas (blanch the peas, cut them out of their shell, and squish in the tank), cantalope, and several others.