Originally Posted by CrypticLifeStyle
The bottle say's 4-6 months, in reality it dosnt. I dont know a single reefer who actually still uses the stuff ever not have to replace it after 1-2 months. Guess it didn't help with the phosphates this time <shrugs>.
Granular Ferric Oxide, basically a phosphate sponge mixed with quality carbon. Just keep up with the water changes, and you can run those lights as long as you want.
This is really funny. Why ? Glad you asked...
First and most important: Algae can NOT grow without nutrients. Just like any other plant can't.
Example in an extreme: take a 75 G tank and put 8 of those Fluval lights from front to back along it so there's 300 PAR in there
and all at 6700K.
Then fill with pure distilled water (R/O)...nothing will grow in it even if the lights are on 24/7.
Second: and this is killer...WE, as in people who like for their plants to get full nutrients as much as possible...PUT IN Phosphate
as an ingredient of the Micro/Macro ferts pack just so that plants such as Wisteria which are Phosphate hogs can have enough of it.
And now someone says "you need to remove all those Phosphates"...LOL...LOL...
I'm rolling all over the floor here because of the diametrically opposed view points(as it appears) on the same subject.
Guys...this is supposed to be FUN, a HOBBY...do you remember that ?
BTW: seems to me that putting in one Wisteria plant at $3.99 will for the life of the tank, keep the Phosphates used up
better/more completely than anything else ever would...but that's just my opinion...LOL..........