I'm currently planning a 650 gal plywood build. I plan on stocking the tank with a bunch of piranha. I have a 55 gal that I was planning on making into a filter. I need some help. Will the 55 gal tank cut it? How large of pump do I need (brand recommendations)? How many bio balls will I need? Any other advice would be great also.
Need help. DIY filter for 650 gal
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