BSF lavae escape proof feeding dish ???

Been placing some BSF lavae in the little "supposedly excape proof" feeding dish in Fluffy's 100L tub overnight and during the day, noticed that there were some BSF lavae roaming about in the tub, so much for being excape proof.

The dish I am using is the Exo Terra PT2816 Worm Dish (designed for mealworms) , some of the mealworms are getting out too....

Have some Fluon stashed somewhere, but not sure if it's going to work with BSF lavae.

What do you guys use to when placing BSF lavae in your tanks with your hatchlings , how do you treat the surface of the feeding dish you use to keep the BSF lavae in the dish ?

I'm thinking a small tub with a hole cut in the lid that's big enough for Fluffy to climb in if she want the contents.

I'm honestly surprised that they managed to escape the worm dish. I use a much less sophisticated dish, and they don't escape. (Then again, they don't last very long with my beardie, so no time to escape haha!) Have you tried the "No Escapee" feeder dishes from Rainbow Mealworms? They're crazy cheap and virtually impossible to escape from.

I use this little guinea pig feeder for Dubai roaches... no escapees. 3 1/2 inches across 1 1/2 inches deep on shallow side

I'll check out that site.

I've had the BSFL in a nice clean tub (that the mealworms arrived in yesterday) most the afternoon so i have them in the 100L tub with Fluffy now (I counted the mealworms and BSFL I left for her and I've seen her looking at them and in the tub (with the worms) and under it , she's pushed it all around the place (was worried she might tip it on it's side but this hasn't happen).

She's been so well fed (by hand by me ; before that by syringe) that she's not so hungry or desperate to eat every bug she see's (knows there will always be more and I'll give them to her) , unlike the likes of Cheakie who's a bottomless pit and clobbers every bug sees.

Ordered and received an Exo Terra Cricket Feeder with my bulk insect supply of 1000 medium crickets , 500 medium supers and 500 BSFL yesterday. I am hoping Fluffy is back to hunting bugs soon and I'll put 1/3 size crickets in it for then.

I guess she's just pampered and spoilt and lazy now LOL.

Contacted the supplier suggested , not interested in shipping outside USA.

So I had a wee brain storm and came up with my own DIYS escape feeding dish for BSF lavae and mealworms see below :
viewtopic.php?f=75&t=239661

And found this https://www.ebay.com/itm/White-Fragile-Ceramic-Reptile-Bowl-Food-Water-Dish-Escape-Proof-Feeder-Bowl/322785051709?hash=item4b277d043d%E2%93%82mX7IKd86NGHbt8-ndFgIgdA

Made a smaller 60mm escape proof dish this after (same process) ,as the 100mm escape proof dish to too big for the 10L day tub Fluffy goes into in the evenings.