Originally Posted by HD Blazingwolf
the plecos are nice
have u considered a bigger drain line instead of having a bean animal?
it functions on the same principle for noise. bigger drain line, less flow.
co2 savings doubled going from a 1 inch to a 1.5. noise was reduced. and you still get alll that turbulent water down the drain to help with gas exchange. for your size tank you may want to go with a 2 inch drain. but then again i don't know ur GPH. at 700 GPH this thing is smooth, but its upper limit is 750 which i have pushed, and it starts making noise, backing up, etc...
done with a CS150 box, and standpipe. vent tube and strainer does not work at that point. i went with a durso style standpipe but i oversized the holes. i did not need it for noise modification, more just height control.. its in my journal if u need to take a look
also, at what height is ur light fixture over the water surface? and how long do u run 100% i know its dimmed up and down, which im still waiting on a time lapse video
Thanks for the info, always good to see/hear what changes effect CO2/noise.
I like the idea behind the bean animal and the adaptability.
So I can drill a small 1/2 bulkhead on the side for the emergency overflow, and then use the other 2 for the flow control. This way I can dial,it in, but you can do the same with the larger pipe, I just like to have an "oh crap emergency" for any flow constriction.
Bean animal overflow modifications are almost dead silent, and the CO2 lose is minimized.
Light height is about 18-20"
Time total is 8 hours, with a 1.5 hour ramp up from 0-100%, then a 1.5 ramp down at the end of the cycle. CO2 comes up with the lights, and shuts off about 30 minutes before the lights do at night.
I could have the lights come on 1.5 hours to 75%, and then for the next 5 hours, hit 100%, then 100-0% in the next 1.5 hours. This would match the typical CO2 climb ppm over the light intensity cycle.