Between this thread and your other, you don't add up.
Like how you say they have been fine for a year, yet here they are only 4-6 months old.
I bought a bunch of convicts wich look the same but the y don't look like convicts,
They are 4-6months old, the biggest one is two inch, hers a pic
Several tanks, yet here you don't..
I understand.. But I have no spare tanks.. The fish that are pikin on my 7convicts are.my blue afra and baby flowerhorn, litraly every 2mins atleast one has to get bullied, my blue area is quite the #40## Basterd along with my flowerhorn.
Fantastic mix of fish there...
Is this the tank still?
http
/www.youtube.com/watch?v=8qjq4ms8iT0&feature=youtube_gdata_player
Either way, you don't seem to want to take the advice of people more experienced, nor does the hobby seem to be the right thing for you. You even ask if a fish is hardy as you don't clean them out often.. so it's as if you are expecting them to be in crap conditions..
I'm going to buy a 3-5" parrot fish for £13-£16 is it worth it ?
Are they hardy ? Or do they die easy, bcos I don't clean my tank often.
How can I teach them tricks ?
Most of the fish need a bigger tank than you have.. either the one in the video, or any of the others, real or not. Take a bit of time and research each species before throwing them into a tank and hoping for the best..