Rango,sunlight will cause algae to grow fast,the more you can keep sunlight out the longer it will stay clear.I have a pond pump in mine that has a hose run up to a 3 gallon bucket that I have filter material in,it filters then falls thru a bunch of holes I have drilled in the bottom of the bucket,which is 6 inches or so to the water line.I have kept shad for almost 6 weeks( not on the same tank of water though) I gonna try to get a picture and send it to ya,mine is just the tank,no insulation,,210 gallon that will slide inside a truck bed,round,bigger at the top than the bottom..
HEY,,WATCH THAT YELLOW ROD