beta is sick

Question
my betas belly is huge you can see through his skin

Answer
Hi Roni,
You are not giving me many details to go on.  Is you beta eating?  What type of food are you giving him?  It could be many things, but I will try to help you...It could be that he is constipated, if this is the problem, cook a frozen pea well, remove the first skin, and cut it up in little pieces.  Try feeding the pea to your beta.  Don't feed him for 48 hours.  I know it's hard not to feed the beta, but it is for his own good.  If he is constipated the pea should do the trick.  If this is not the case, then it could be dropsy, or a tumor.  There is very little you can do for your beta if is dropsy or a tumor, but to treat him with kindness.  I have a beta with a huge bump, he eats well, but can't swim like he use to, he has been like this for 6 months, but he comes to greet me, and is happy, and eats well, so you see, if it is a tumor, you can still keep your friend for a long time.  I hope this is not the case, and that it is constipation.  Always give your beta a pea a week, this keeps him well...also if you are feeding him blood worms all the time, this could be the reason his stomach balloons...try feeding him pellets.
Hope this helps
Lynda