I've read a whole lot of post's about making a filter from scratch but I can't find schematics from start to finish and I know there is a great deal of real knowledge on this site , so if anyone here can point me towards some easy to read diagrams and instructions on building a filter system for a 125 gallon tank that will be home to a Silver Arrowana and maybe 2 other different species of compatible tankmates. Any help will be greatly appreciated.
out of the url
aboout 30g, heavier bio-loads should go 1/3 of tank size roughly 40g