Thefisherj
New Member
My grandad has allowed me to have a rack to have grow out tanks on, I making diy tanks out of storage boxes and can fit 5 28ltr tanks and 2 110ltr tanks on it, planning to individual filter the tanks using sponge filters which are 5 200ltr sponge filters and 2 320l sponges filters, now my question is how powerful air pump do I need to use?
