Shark Sb-300F Filter In My Betta Tank

[Aleksandar]

Hi

I need help, i have filter Shark sb-300f in my 15 liter Betta tank. And the current is to strong . The filter has one part that has holes on it and that is above water (water goes out from that holes), i dont know if i can put that part under water, if i can do that then the current wont be very strong. I'm looking on internet but i cant find anything to read about this filter (and in the shop where i bought it , they dont know). Filter is completely submersible, but i dont know if that goes for all parts. There is also some hose and has some part with little hole. I dont know if that is also something i need to attach to the filter. 

I'm sorry for this question, i know is stupid and funny,  this is only place i can ask cos i cant find answers on the internet. 
 
Please advise what type of filter to buy for my tank,

 

[Ch4rlie]

Hmm, not heard of this filter, but looks like it can be fully submerged and your spray bar can be positioned under the water.
About an inch under surface of water with the spray nozzles pointing about 45 degrees up towards water surface from rear of tank towards the front of tank.
 
If the flow is still too strong, perhaps you can enlarge the nozzle holes, this will help to reduce the flow speed coming out.
 
Just  case of fiddling around with it until you get the desired results you want basically.