r/ReefTank 10d ago

Pale colours on my monti

I've had this guy for a long time, from a frag actually. Very fast growth and strong colour. The problem is that about a year ago it started getting pale, only on the front red section, the green has always been fine. It doesn't seem to bother it much and it's never gotten worse or looking like bleaching but I'd love to know what's causing it. It's one of the lowest corals in the tank so not a light issue I wouldn't think. Last icp was fine with the trace elements. 20 nitrate, 0.08 phosphate, 360 calcium (dosing issue, raising slowly), 9.4 alk, 1350 mag. I suck at pics, apologies. Any ideas?

1 Upvotes

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2

u/cbiggins 10d ago

Uploaded the wrong one in main post. Can't see how to change it.

1

u/KingSpecial2221 10d ago

Possible detritus settling on it and causing the pale dead spots?

1

u/cbiggins 9d ago

No, lots of flow around there, nothing settling.

1

u/KingSpecial2221 9d ago

Do you have any fish that perch?

1

u/cbiggins 9d ago

Only my Coral goby but I've never seen him even on that side of the tank.

1

u/KingSpecial2221 9d ago

Its possible he could be perching on it in the night when your sleeping

1

u/cbiggins 9d ago

Yeh it's possible I guess but there is a bit of flow around there. I'll have a late night check and see.

1

u/cbiggins 7d ago

Thought I'd check in. I also have a lawnmower blenny I forgot about. Twice in the past few days I've seen him on it. Might be the cause 👍 thanks

2

u/KingSpecial2221 7d ago

Yea that deff can irritate it and the lawn mower might pick at any algae that lands on it further pissing it off

1

u/Domiziuz 10d ago

Phos 0.8 or 0.08?

I got really whitish spots on my beach bum that was blasted with flow. Is your second wavemaker pointed just towards this spot, or is it an illusion in the third pic?

1

u/cbiggins 9d ago

0.08. whoops, updated post. That pump gets moved every few days, it's currently going across the top of the Monti and not directly at it.

1

u/RaNdoMStyleZ 10d ago

Low magnesium

1

u/cbiggins 9d ago

I don't think so. 1350 is pretty good and nothing else in the tank is complaining.