Sorry for all the question but we all gota start someware so hope you dont mind...
do my cichlids need bubbles pumped in to the tank?
No. However bubbles will increase the oxygen levels in the tank, however you don't NEED them, aslong as you have good surface agitation from an external filter you should be ok, but it won't hurt to have bubbles.
i got a 240l tank how many cichlids can i have? (wot sort and many many ov that sort)
Totally depends on the species of the fish. You have a mix of new world and old world cichlids. They require quite different water conditions and foods. I'm no expert on african cichlids so I recommend you post in that forum if you want advice on them. With african cichlids you can overstock (depending on species). And with new worlds its better to have less fish.
What I would do is decide which you like better, the african or american cichlids, then rehome the ones you don't want and post back here for stocking advice.
wot temp do cichlids like?
Again depends on cichlids
why do they hide when i get up?
They may just be settling in and not used to you yet. Though some fish are skittish, others are bold and will swim to the front of the tank.
and why dont they eat?
They may be settling in and getting used to their surroundings, depends on how long you have had them. I would check the water paramaters and do water changes if neccessary.
like i said i am sorry about all the questions but i wana learn!