Originally Posted by Sachin1kapoor
Hello gboy and Mumma of two ,
Thanks for your reply, I checked Chinese algae eater on google and yes that's the same one u have. Yesterday I went back to pet world and they said it doesn't happen normally but if the algae eater is aggressive then this might be happening, also they said that algae eater might be hungry as the tank might be clean so they gave me some pallet food which sinks, however AE didn't seem to happy with it just chewed a bit and again started chasing goldfish.
The tank size is 30 lts, and it has a sponge filter at the bottom and and a air tube from where the air comes and circulates the water. It is a ready made 30 ltr bi-orbs.
I'm afraid you've got more problems than just the CAE
Those goldfish simply do not belong in that bowl I'm sorry. One goldfish needs 20g (80L) and each one after that needs 10g so for three to live by themselves you need a 150L tank minimum. Goldfish are messy creatures and require high filtration 10x the tanks volume an hour.
I really strongly advise you return ALL of those fish and buy something more appropriate for your tank like a Betta.
Those goldfish will not live a full life in that bowl and keeping their water clean will be next to impossible.
Here is a link that explains tank and fish care and the nitrogen cycle. Cycling a tank is VERY IMPORTANT.
Guide to Starting a Freshwater Aquarium
Please if you have any questions don't be afraid to ask! We are hear help you and your fish.