over head filter...2 outflow?????

[alvinpark]

i am using a dolphin over head filter for my 2feet x 1 feet x 1.5 feet tank, about 18.5 gallons.

while just browsing through other people's tank picture i noticed that there are 2 outlets and 1 inflow. the inflow is obviously to suck in the water and 1 of the outflow goes to the overhead filter.

however the 2nd out flow has an air tube attached to it which i hang out of the water. when i put my hand in front of the 2nd output i can feel a current. is that good? or wrong? my nemos tend to get swept away by it....

and also i did not fix any parts to that 2nd outflow...the package came with a few other spare parts for it but the uncle said it was redundant....help?????

[alvinpark]

and is using an overhead filter the right way for a marine tank with bio balls and ceramic rings?

i have been trying to research and i noticed people hardly use filters for marine tanks....

[Rxcp14]

Cant help with ur filter but regarding Usage of filters for marine tank, its more abt worrying that ur bio filter will become a nitrate factory as debris are all collected at that point. I personally feel that as long u rmb to clean and maintain the filter regularly, it shld be fine using a filter... Hope i've helped...

[alvinpark]

thanks.....i recently bought a canister filter. a jebo one as i am on budget...currently running on both overhead and canister so it will not shock my system.

[raydiative]

you should remove your bio balls.. they are nitrate factories.. also, please clean your canister frequently as if you do not do anything, it would be a MEGA nitrate factory!