with atleast 4 pacu, you will need to add an extra zero onto that 300. 4 fish that are 2.5-3' each would take up an entire 300g, with room for about 10g of water. start worrying about building a huge pond now, rather than finding more pacu.
with 4 pacu, you would need at minimum a 10x4x3, and thats still going to be cramped. especially considering pacu can be 3 feet long, a foot tall, and 4-6 maybe even 7 or 8" thick
look into buying an intex metal frame kiddie pool. for the pool, wood and insulation for framing and a 3600gph pond pump and filter from ebay, i spent just over $500 total. and a whopping $20 on two tarps to double up as a cover for it all.
with 4 pacu, you would need at minimum a 10x4x3, and thats still going to be cramped. especially considering pacu can be 3 feet long, a foot tall, and 4-6 maybe even 7 or 8" thick
look into buying an intex metal frame kiddie pool. for the pool, wood and insulation for framing and a 3600gph pond pump and filter from ebay, i spent just over $500 total. and a whopping $20 on two tarps to double up as a cover for it all.