I had to refill after a month ....., found I had a leak where the regulator is attached to the tank. Tighten as tight as you can , plus a half turn.
That sucker must be tight! Its amazing how much better it works without a leak! Good luck.
Eheim pimp #128, 55gal 13x20x48, Eheim Pro 2227, CO2 injected, into the filter breather tube,4x 55w Pcs , 12 hr light cycle (sunrise/sunset simulated), Milwaukee SMS 122, faulty bubble counter replaced with M3 bubble counter..... moderately Planted, Plantex CSM+B and ferts
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