koi pond question

[mr.spooky]

i have a some what large koi pond (about 5k gal. +/-).. my kois have had babies,, ALOT of babies, and i need to get them out,, but i dont know what the best way is..... are there any koi keepers here that can help??
my bigest koi are only about 15 to 20 inches,,, and then, every size down from there..
the water is dirty right now because i havent cleaned the filter in about 3 weeks, and all of the plants are dieing so the filter is having to work hard...





thanks in advance!
spooky