Why a goldfish(coldwater fish) in a heated aquarium? Commons get up to a foot long. Also, the last time I put a paradise fish with a Dwarf Gourami, the Dwarf Gourami came away with no eyes...yours probably has a bigger territory and could be more peaceful, but I would watch out for that.
I would REALLY watch out if the plecko is a common plecko, though. They grow ~14 inches, sometimes larger. Don't know why they sell them so often.
I would REALLY watch out if the plecko is a common plecko, though. They grow ~14 inches, sometimes larger. Don't know why they sell them so often.