inconsistent flow with hydor co2 setup

mellowvision

Seafood Lover
May 17, 2007
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Brooklyn NY
www.mellowvision.com
Real Name
Bill Brissette
I got a hydor co2 set up, with a paintball cylinder for my 15g tank and have been running it for about 2-3 weeks now.

I feel like every day, the flow rate is different, regardless of whether I've touched it or not. I just walked in to it blasting the tank with co2. Yesterday I was at about 1 bubble every 3 seconds. right now it's about 2 per second. I did not touch the regulator this week.

I'm curious what causes the change in rate, and how to truly control it. will a needle valve solve this? if so, can anyone reccomend a good one?

thanks.
 
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