Those of you who suggest goldfish do you actally know what feeding goldfish does to the fish that eat them?
Goldfish contain large ammounts of a chemical called thiaminase which inhibits the intake of thiamine. Thiamine is a B1 vitamin that is vital for the control of the central nervous system and helps change carbohydrates into energy.
Without this vitamin the fish first become lethargic and then will start to lose control of movement, suffer from spasms and ultimately will die.
Next time you want to suggest goldfish as feeders have a think about what you are actually suggesting. If feeders are essential for the welfare of the fish (in the case of pirahna this is not true) then home bred feeders which are not goldfish are the only safe option with live bearers and small snakehead species being the best options as they breed readily grow fast and do not have sharp spines which could injure your fish.
Goldfish contain large ammounts of a chemical called thiaminase which inhibits the intake of thiamine. Thiamine is a B1 vitamin that is vital for the control of the central nervous system and helps change carbohydrates into energy.
Without this vitamin the fish first become lethargic and then will start to lose control of movement, suffer from spasms and ultimately will die.
Next time you want to suggest goldfish as feeders have a think about what you are actually suggesting. If feeders are essential for the welfare of the fish (in the case of pirahna this is not true) then home bred feeders which are not goldfish are the only safe option with live bearers and small snakehead species being the best options as they breed readily grow fast and do not have sharp spines which could injure your fish.