When i first bought this over a month ago it was doing good with bright colors and extension. As weeks went by it gradually went downhill to the point know where there is hardly any polyps showing. What would cause this? Was under low lighting when first introduced.
It's also not a wild acro so I thought I'd have a better chance of survival with this.
I can't give you the answer but want to give you hope. Plus some advice not to throw it out, even when you think it dies.
I know how you feel. I love Forest Fire's especially with Green Metalic background colors.
I've tried to keep a couple Forest Fires, and had good time, bad times, and momemnt of burst growth and PE.
It's suppose to be a easy to keep typical Digitata SPS. But for some reason it's very FINICKY....
I think it's something to do with Nutrients (and 100% Water Parameter Stability).
Not so much lighting and flow since I've had them at different lighting levels (top of Tank, Bottom and Middle). and various Flow spots.
Don't give up even if you think it's dead.
Here is an
examples of "Return from the Dead".
The First is a Beautiful FF Frag I got, and it went up and then downhill like this.
I thought It totally died (no photo but nothing but white skeleton left),
It was hard to reach, so I left it's skeleton.
A few weeks later I noticed a Glow in the Tank.
IT CAME BACK!! I was Shocked.
I eventually killed it.....Maybe I didn't and just threw it out too early.
Then with another Piece, here is a different kind of comeback after my FF going DownHill to almost dead.
It evntually almost died
after growing into that odd shape. Funny if it kept growing BIGGER

.
But two years later the remenant on the rock hung around.
Finallly It's making a another Great Comeback. Growing Fast, and Getting NEW GREEN TIPS.
This time, I know it's Nutrients & Stablity, since that is what has improved all my SPS Corals.
Not the perfect Answer, but just want to give you hope to keep trying on the little Frag, and not give up.
ONE COMMENT: Mag 1700 is a way toooooo High. (Maybe Typo since most kits don't measure past 1500)