I've got a 150cm, 450l tank with two filters running at the moment, however I'm not convinced I've quite got the dispersion quite right. As mentioned, I've got two external filters running up to spray bars attached to the back of the tank. I've attached the inline diffuser to the filter exit pipe from the more powerful filter (eheim 2076), and I can see a good stream of micro bubbles coming out, however they are mainly concentrated on one side of the tank. Also, the growth on one side of the tank (with the spray bars that are outputting the micro bubbles) is much better than the other. My question is, can I split the CO2 after it exits the bubble counter and run it to a second inline diffuser that I'll put on the other filter ? If not, are there any other suggestions ?