1) Food:every time all cutted pieces are eaten for 100% in 2min.! No piece fall down till gravel (ofcourse Stenker Good Heart play a main role)
2) Water changes: in first 11weks 100%-150%weekly WCH but biggest was ''only'' 36% in change.(tank have own bio balance-and I disagree with USA method as 80_100% daily WCH)
3) Most important thing: once a week Im cleaning gravel (Im take out 5mm up layer and carefully wash in bucket,than replace back
Big tank its important,simpliest water plants but a lot in a start (Oliver Knott method-world aquascape champion)
And T=28.9'C/84F' not more (if fish are above 5cm/2) My tank get oxigen only from surface agetation !