although not recommended... 4X2X2.5ft.. coral beauty, Powder Brown Tang, 2X percula clowns, bubble tip anemone, cup coral, cat eye bubble, pearl bubble, rocks and rocks and more rocks... of course with water too.. cannot measure phosphate and nitrate with salifert testkit (last measure 1 month ago before i started using my beckett skimmer again)... that was last time after my skimmer broke down... the tank is 4-5yrs old... so for the 1st 1/2 of the year, i did use a skimmer.. after that the pump broke down then no money to repair or buy new 1 and most impotantly parent complain my tank very expensive, and it did not have any ill effects on my tank except for the algae growth which i harvest manually... feeding regime is only pellets twice a day.. i used a chiller coz i am using a 250W MH with parabolic reflector (n the process of building my LED module)... i've just added a beckett skimmer so that i can keep SPS.. currently i have 2 big frag of orange monti and a radioactive birdnest frag from a kind reefer.. other inverts including 3 open brain, 2 wild acros, 1 anemone which i fail to identify (i think its corkscrew anemone). new addition on top of those i've already mentioned includes 1 powder blue tang which terrorise the tankmates right after it is put inside. yellow tang, baby regal tang and 5X firefish which always stays together..