Can I keep a few 12cm goldfish with five 5-centimetre rainbow sharks in a tank together? - Quora

Rainbow Shark in Goldfish tank Aquarium Advice Forum Community

I'm getting a 30 gallon tank and I'd like to keep a black moor goldfish, what tank mates would you suggest keeping with it? - Quora

Does tank size limit goldfish growth? - Quora

Why does my goldfish have red lines in its tail? - Quora

Can 2 goldfish live together? - Quora

Why is my healthy fantail goldfish sleeping under the fish tank filter? - Quora

Does tank size limit goldfish growth? - Quora

How to take care of iridescent sharks (Pangasianodon hypophthalmus)? What is the diet, tank size, etc. - Quora

Tank Mates For Rainbow Shark

Which size tank and fittings would you need for a bala shark? - Quora

How to introduce a pleco to a goldfish tank - Quora