You can put them in a tank as they are or use bleach to render them almost white. It is really just a question of what you prefer.
If you use bleach, just give the a good wash and a soak in clean water afterwards, and use an extra dose of dechlorinator when putting them in the tank :thumb:
If you use bleach, just give the a good wash and a soak in clean water afterwards, and use an extra dose of dechlorinator when putting them in the tank :thumb: