I have a regulator with solenoid (bit old may be 4-5 years old). my problem is bubbles are not constant I need to make 3-4 adjustments daily to get correct bubble rate. and those adjustments are time consuming, I really don't have that much time daily. I don't do any adjustments while turning off in evening but when I turn On again in the morning no bubbles appear even after waiting for a while. I need to turn the knob again slightly then too much bubble appear slowly it reduces and stops after 30 mins. but sometimes when it will be 1BPS then after 30Mins it would become 7-8bps. when i come back home all my neon tetras were at surface struggling to get oxygen. I don't know what is the problem in setup whether it is the diffuser or regulator. I am not happy with my Diffuser so I have ordered new one already with bubble counter and check valve (good quality) currently I have poor diffuser. So please help me to find the problem in my setup. there are two knobs in regulator one is on bottom right corner (black) and another knob which doesn't change anythig in bubble count is at left (steel one near blue). MY TANK is of 30G heavily planted with 11 neon tetra and 2 guppies.
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