I have a 180g with a soon to be large bioload and a 50g sump and hoped u could tell me how many bio balls i should use and any other advice for my sump.
Sik.10a;5100151; said:Coral can be another substitute for bio balls and matrix, or go for a combo, but I still say leave bio balls out, there old skool, but still work- it's a surface area thing for good bacteria to grow
. Scrubbies are good but get dirty and I don't like cleaning my bio and risking a mini cycle. I love bio balls, get the small and big ones, the small ones fill in the little spots. Coral will mess with your PH.