my mate had a silver shark from when it was about 1" within 8 months it grew to 5" and he had to get rid of it, dont know about the others thoughHOw big will my shark get. I have a silver shark and a columbian shark in a 29 gal tank with a pleco. I removed my goldfish? I wantt o know what size will they get.
...The lfs don't always care what you stock in your tank as they are making money from you...
Sorry Timmy.![]()
I should have phrased that better. I meant not all of them care but there are some really good ones about.
We are lucky with our local Maidenhead because they always give us good advice and are always willing to help. On the other hand, we have been to other shops where the staff just don't seem to care.
Silver Shark - Can be up to 14" but in an aquarium it's more likely 7"

I'd go in and give them a good telling if I were you - and take them back while you're on My silver sharks got to 7" within 12-18 months from 2". I would say 10" is the minimum you should expect from a bala and don't be surprised to see them get bigger....The lfs don't always care what you stock in your tank as they are making money from you...
A bit of a generalisation there!![]()
Sizes:
Silver Shark - Can be up to 14" but in an aquarium it's more likely 7"
Colombian Shark - Roughly 13"
Plec - Impossible to say without knowing which species, but likely to be a common plec.. meaning about a foot.