read that people feed there plecos cucumber, do you need to wash it with clean water first before putting it in the tank ? i have a female bristlenose pleco - shes about 2 inch's long at the minute so im guessing is fairly young ?
you can feed cucumber, but there is very little nutrition in it (mainly water). A better alternative is courgette, or a number of different fruit and veg can be offered.
just a rinse in tap water should be all that is needed before adding to the tank.
Plecs do usually like cucumber, but there's so little nutrition in it, it's hardly worth feeding, tbh. Courgette, peas, melon rinds, broccoli, apple and slices of tomato (an end piece, with no seeds) are all far better.
The courgette and peas need to be lightly cooked (and the peas need deshelling), as does the broccoli (which also needs splitting open). Everything else (including cucumber, if you do feed it) just needs a quick wash
i feed my bn plec cucumber and it loves it! so does my clown loach. you just have to weigh it down because it will float. i use plant weights to do that. but be carfull when you cut the weight not to leave a sharp edge