my Panyk is even more lazy than your little turtle. he will look at his fish go "om nom nom. i will eat you!" kick his feet twice and say "oh well too much work" and then go bask LOL
just give him time :3
some people hold onto their feeders with tweezers so their turtle-dort doesnt hafta chase the little bugger
another nice alternative is Ramshorn snails
their shell is relatively weak and your little bugger should be able to eat it
if your turtle is smart like Panyk he/she will be able to eat the snail without eating the shell LOL
then you just leave the shell in the tank and let dissolve
by letting the shell dissolve in the tank it puts some extra calcium in the tank which is very helpful for your turtle shell
as for your boxie if it doesnt like the fruits you are giving it
you could try strawberries, squash, or even a nice cherry tomato
i dont think fruit are very good for them though since they are FULL of sugar
im not sure if its the same for boxies but thats how it is for aquatic turtles
box turtles are land lubbers like tortoises so you could try a bit of squash since tortoises seem to love it
ive also seen a tortois to NUTS for some cherry tomatos :3
i hope i helped a bit! i didnt read the other posts since its 7AM and i just woke up and they were too big so im sorry if i repeated anything :(
