[lilsoccakid74]

Hey guys, i have a fluval 205 and was wondering if it would be safe to put the diY co2 into the filter intake. I dont want to hurt my filter and wondered what you guys think.
Thanks!

 

[oldpunk78]

i tried that on my 205 and it didn't work very well. it would just spit out a bunch of large bubbles every now and then.