We put a pond in our backyard going on 2 years ago & we can't keep the darn thing clean! We bought the kit from Menards (it's a 300 gallon kit). We have 6 Koi fish in there & we want to make sure to keep the water clean & safe for them as well.
Does anyone know about them & if so, how do you keep them clean? We've tried chemicals & water lillies but they haven't seemed to help much! The algae grows so fast it's hard to keep a handle on it.
Any suggestions???