It seems to happen on every coin when a major new feature or release comes out after prior announcement.

For instance, although GameCredits has done well recently, at first it had a downdip when a major new feature came out some weeks ago -- only to later recover and rise further.

Apparently something in investor psychology makes hope more powerful than actuality, in the short-term anyway.

Famous phrase: Buy the rumor, sell the news.

Of course, also, Bitcoin surged now, impacting altcoins at the moment.

Anyway, this is within the bounds of a normal market correction after a surge.  I'd give Belacoin time, as it is doing great in the longer-term picture so far.