chadwickz 71,
It almost sounds like your 25 year old pond was recently started over. Is that the case? If all you have is LMB and HBG, you will need an infusion of forage species fast.
If you have a breeding populaiton of forage species such as BG, RES, golden shiners, gambusia, etc, you may be OK just by removing the skinny 12-14" LMB.
