Are we talking about an airline with airstone bubbler here? If so, I think the problem could be that you have not adjusted the valve (there should be a little black valve somewhere along the tubing) to lower the air output slightly so that it is not so turbulant in your tank.
I had that problem when I first began using airlines (my tank looked like a cooking pot on fast boil LOL

) until I realised I was able to adjust the flow by twisting the little valve.
Athena
Is there a valve really? And yes it is an airline,a hose you can bent, yes? I will have to have a look - if that is the case I will b much happier. The thing is my filter keeps sliding down and often doesn't stay in the place to brake the water. And yes I am very stressed out lately about the whole thing. My barbos cereza (punteus titteyas are unwell now - before it was silver dollars. And one of them is swimming head down with the spine curved slightly towards the end of it. The 5 of 8 were breathing at the surface. I don't have test kit - they aks 120 euro for it here and I don't want that kind of money right now. I have bought something to put in a filter to reduce amonia, nitrates, nitrites just to make sure, specialy because I'm going away and will have to put in holliday food (7 days).
Also I was worried there might b maybe some desease in the tank and I can catch it. I definately had small cut on my hand and didn't use gloves. First my silver 2 out of 3 dollars died. Now this - with the punteus!!! But besides the one bent spine I have never seen any skin problem. Although one silver dollar had this massive bruise, but I thought that maybe happend when he jumped out? I have to say that I am worried also about the tuberculoses and that I will have it? Does anybody knows what are the symptomes when humans have it? The truth is my little cut on my hand is not desappering and I have it at least 1 week now - minimaly... I am in real mess right now

lucc
problem with doing that is, the bubbles no longer cause enough surface disruption, to add any O2. if cleaning is that much of a chore, buy splash guards, they are cheap enough.
Not really...you can adjust the valve just so that you still have a good flow of bubbles that gently break the surface of the water without it looking like a fierce torrent, spurting water over everything. It's not necessary and can be quite stressful to the fish - and to anyone in the room having to listen to a raging stream of bubbles.
Besides, if there is also a good filter with the nozzle output aimed at breaking water surface, then you're doubling things up which helps release any toxic gases in the tank water and adding to the aeration, which is good.
Airstones are not a necessity in an aquarium, anyway, especially if there are live plants in there. A common view is that airstones add no real purpose to the tank (if the filter is doing a good job) other than they look good. I agree somewhat with that. You can see that the air bubbles being released travel directly upwards to the surface so they are not exactly aerating the whole volume of tank water - but I use them to add to the dispersement of chemicals by breaking the water surface (so I use them on the opposite side of the tank to my filter to create a double-wammy effect LOL)
Whether or not you have the valve set to full output or not will also depend on the size of the tank and the volume of water - a large, deep tank will need a stronger output than a smaller, shallower tank. Also, a brand new airstone will have a stronger current than an airstone that is e.g. a couple months old.
The OP is obviously not happy with the situation at present, so my comments are aimed at trying to find a resolution because an aquarium is supposed to bring pleasure not stress (although inevitably it does, especially in the early days, and then we have to do our best to put things right again).
Athena