hiiiiiiiiii i need some advise .., i only set up my tank few says ago, but y inside got lots of (black or brown) things looks like shit but its not ... anyone kn's wats tat ......... do i need to clean tat up ???
i have c resun chiller c-650 (i buy 2nd hand), i set it to 26 deg but i run it for 7hrs n still cannot hit the temp ?
can i wash it or do something about it (
my new tank 4,2,2
bottom of my tank there's a gap for water flowing into the sump tank, but i wanted to put sand will the sand flow into the gap............
wat should i use to block
pls help me (