Best dosing method for color

[Dowtish]

On a 120 with mostly acro's you need three mp40's.
I have 5 running, two on the left two in the back and one on the right.
Dropping alk to 8 is a must too.
I had my tank running a 9.5 and now it's steady at 8 and I see all colors of the rainbow.

I'd say that s overkill.

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[bct15]

You don't need three mp40s, two will do the trick. Just mount them at opposite ends pointed right at eachother. Five mp40s sounds like a lot, maybe a bit to much.

Alk of 8 is good, much higher than that for an extended period of time and my tips start burning.


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[Diver86]

well i woke up this morning and check me alk and i got it to about 8.3 so i dosed half of my normal amount to bring it down a bit slower... But the good news is that i have pe from the acros i haven't seen it from in weeks!!!! Thank you guys so much for the help and hope everyone has a good day... Its been driving me nuts cause i can grow any coral i've ever wanted to try except acros so its been frustrating to say the least