Maybe a silly question but just wondering what rust in the aquarium does. I know it's a bad thing but don't know why.
Reason I ask is that i've had some cheap powerheds in aquarium and have noticed a small ammount of rust on shafts. I have replaced them with carbon fibre rod that I got from a hobby shop, but just wondering what damage this has been doing o my tank.
Reason I ask is that i've had some cheap powerheds in aquarium and have noticed a small ammount of rust on shafts. I have replaced them with carbon fibre rod that I got from a hobby shop, but just wondering what damage this has been doing o my tank.