Quote Originally Posted by davejnz
The microbubbles are a nuissance to us,they don't stress fish/inverts though.A few baffles positoned in the sump can help redirect the flow allowing the bubbles a chance to rise to the surface and pop.Another thing that works is positioning the pump so it is as far away as possible from the overflows output.An elbow fitting can be put on the pumps intake,the elbow will allow the pump to pick water up off of the very bottom of the sump where there aren't as many bubbles at.
Thanks for the tip Dave, Im going to go out soon to the store to get a fitting to get the pump to grab water lower, I heard it stresses fish, but if you say no thats good enough for me.