^^^ Ditto, Same setup here... My first chamber I have a compact heater and the skimmer, that over flows into my intank media basket which has filter floss on the first level, then it goes into Chemi pure, then Filter floss, and the last chamber is cheato with an in sump submersible ight. The third chamber I just have a maxi jet utility drive pump. I have 1 korialia 250 nano(the one the size of an egg). I also run LED's on mine. I aswell have 14# of LR in mine.
I used to do 10-20% water changes every week on mine, however I havent done one since about december, just top off. I would say the Tank is "Bulletproof" at this point haha.