ok been awhile since i updated, ran into unexpected expenses. but the tank is now up and running, has gravel a few rocks and one driftwood from manzanita man. only had 1 leak around the window i had to reseal when filling, so not bad for a first timer! filter system is from 3- 48 gallon trash cans i bought new not used, lol. first is filled with 100% polyester fiber filler, second is full off 1,110 lee's large bioballs and 2 ehiem jager 300w heaters, third has the 3600 gph pond pump with another 300w ehiem heater. it comes in through a 2in pvc shower drain with plastic strainer to keep nosey fish from going in and returns through a 1 1/2 in 3 ft tall spray bar mounted vertically in the corner with i think 12- 7/16in holes drilled in it pointing in 3 directions to optimize water flow. also has a 7/16 hole drilled in bottom of upper neck to break the syphon if power goes out. the filter system works good but would have done it different if i had to do it again, the 2" pvc layed horizontally connecting the trash cans doesnt flow enough water so i had to put in a bypass/ return line with the pump so it didnt pump its container dry. but all in all its an effective system and i estimate it to still flow around 1600-1800 gph hour so still turns the tank over 3 times an hour. also had to install a 2x6 brace on top of the tank, the pressure was spreading the walls apart. first night was only 1/16 of an inch, got home and it had gone to a 1/4 in so i installed a brace immediately and have had no more spreading or water leaks in a week now. here are a few pics