first time user i like this koi forum my pond is a hobby my 15 koi are pond koi my pets for 10 years
(16"to26")pond is 2500 gal 36" at deep end 24" at shallow end 4 55gal drums with lava rock for filter no uv but can see bottom like most of us would like gen clear water so i'm trying a ultima 11 filter(4000) with a 5100 sequence pump and will keep the lava filter will appreciate any comments thank you