New Filter, Small Bubbles/high Flow Rate

[NickBFC]

I have a Juwel Rio 125 with Saulosi Mbunas, as they're messy fish I upgraded my U3 internal filter to an Eheim 2215 external. At the moment I am running both filters until the new one is ready to go alone. However, the flow rate seems pretty high (knew this would be the case) but it's causing a lot of small/micro bubbles in the water which is very unsightly. I don't think there is an air block/leak anywhere, the intake/out tubes look clear of bubbles as does the canister as far as I can see. I primed it properly before switching on, and have rocked the canister around to try and displace any bubbles. Do these images below look normal for a smaller tank with higher flow filter, or are there too many bubbles?
 

 

 

 

[Sophie]

Doesn't it have something you can adjust the flow rate with?
 
I have a Fluval FX6 running on my Roma 200 without a problem as I can turn it down so it doesn't blow everything away

 

[NickBFC]

Not on this filter I guess I could drill the holes in the spray bar to make them bigger? That should keep the same rate of flow but reduce the pressure into the tank?

 

[NickBFC]

I've made the holes a bit bigger and played around with the spray bar angle, does seem to have made a difference but not yet ideal. I guess it's a case of playing around with it to find the perfect set up!

 

[spongy]

My Aquamanta EFX did the same when I first set it up. If you have a lot of sponge as media or the cotton wool type stuff it takes a while for all the air to be dislodged. It will clear up after a while. Mine did anyway.

 

[NickBFC]

Cheers, yes a lot of sponge in there and only 2-3 layers of wool at the top. Hopefully it'll die down then as after enlarging the spray bar holes there are still too many fine bubbles for my liking