thanks, i think i am all good, i thought the elbow shape tube without half cut is for the spray bar, the half cut one will leak water.Sab_Fan;3246497; said:the EHFI pro can be used a long, long, long time . . . I'm not sure when or why you would change it, but I do know that you should never change more than 50% at a time, because otherwise you'd have to start building your nitrifying bacteria all over again . . .
also, when cleaning your filters, make sure to rinse the EHFI pro in tank water, not tap water; otherwise, you could kill the bacteria and, again, you'd have to start from scratch
the little green half-cut elbows are, I believe, to keep the bend in the hose when you put the spray-bar in the tanks . . . I don't use them anymore
I'm not sure about your last sentence, are you saying you couldn't re-connect the hoses? I'm assuming they gave you the quick release taps for your hoses (?)
tomorrow lfs will have my 75g and i will install it.