Copperband in a 50 gal?

[golden69_ca]

go get yourself some liquid ph up and some insuline suringes . i found that i feed the tank first so they catch food then fill the suringe with ph up and stick it to them and within 24 hors they ar totaly dead and gone . does not change any thing in the tank and i did not have a single surviver .
you just inject enought so that it comes out the mouth than on to the next