I broke my Nano tank

My plants have far outgrown my small nano tank and I decided to do a rescape...












While shifting my tank, I accidentally heard a crack sound.

Now my plants and fishes have nowhere to live..

Will release this lot of fishes into river to avoid casualty after considering the non-option:
Option: Flush down the toilet, wait till I get a new tank and start to age the water?

Beginning of a long journey for these fishes