It is safe for bettas, BUT bettas can be picky eaters, so try it out before hand. Also, he will not need the whole block, so cut it into 4 quarters, and try 1/4 for a few days before you leave to see how he does. If he eats it, drop 1/4 in for while you are gone. He can do fine on his own for a weekend, but if you are going to be gone for a week, you should definitely provide this or have a pet sitter come in.
Date published: 2017-11-21