just filled pond anddont have any fish in yet , still installing stock tank filter but have skimmer to falls working, what should the water parimeters be for testing water? have only tested for phosphate wich was 0.25 and PH was 7.5 , also filled with city water and have not treated it with any dechlorinater yet. was reading some on addition of bactieria when i add fish ,could pond be cycled naturally with just 2 or three fish or is this a bad idea?