just DONT overloaded Your aqua by fish.Under my 400L/105g works EHEIM 2128thermo -750L/200g per h and its E N O U G H (S U F F I C I E N T )
russian experts wrote : all your aqua need is - 1percent biofilter (from tank size)thats mean 100g tank need 1g biofilter and if You have planted aqua You must have filter with 200g-300g in h.
russian experts wrote : all your aqua need is - 1percent biofilter (from tank size)thats mean 100g tank need 1g biofilter and if You have planted aqua You must have filter with 200g-300g in h.

