Welcome, Jason! You'll get tons of great support and knowledge form the folks here. While I am not experienced with your sort of situation myself, I have read numerous posts here that suggest that sort of decrease is pretty common in new ponds as the ground absorbs water and finds its "equilibrium." You're probably doing okay, but definitely watch it for any more drastic change. Good luck and, again, welcome.

Todd La Neve

[Linked Image from i108.photobucket.com]
Click Here to Subscribe to Pond Boss Magazine

1.5 & .5 ac ponds - LMB, BG, RES, YP, GC, HSB