[ginger7286]

I am getting ready to set up the plumbing on a new tank. I have a pump rated for 1800 gallons per hour. My tank is going to be a 125 gallon reef-tank. Can I put a ball valve in just after the pump to cut down on the GPH? I was going to get a 1200 gph pump but I was told the filtration system will need more that that to keep good water flow and exceptional filtration. Would a ball valve help me to to keep the gph a little less tht 1800 gph but more than 1200 gph? Or should I just let her do her job?

Thanks,

[NATIVEVAMAN]

Thats 14.4 times the tank volume.It doesnt sound to bad to me.some reefers like 20 to 30 times the tank volume for flow. I would say that if the fish are scrunched up against the tank wall you went to far lol.

[ginger7286]

I guess if they look like they are swimming upstream like salmon I'll know to cut it back. haha Does the ball valve sound good, so I can adjust the flow IF I need too?

[starfishlover]

I have 1800gph in my 125. Granted just set it up and no inhabitants yets,but thats what LFS told us to get. Good Luck