Why are my montiporas not growing?

[Tbg299]

All of my other sps frags (stylophora and seriatapora) are growing except my Montis. I have a Sunburst montipora (plating) and rainbow montipora (encrusting). All of my parameters are in range and they are receiving the same flow and lighting. Honestly don't know what the problem is. If anyone could give me some more information about montiporas it would be highly appreciated.

 

[BeltedCoyote]

What are your numbers?
what lighting do you have?
if your other sps is doing well, what’s the placement of the montis? Are they getting shaded by something? Is anything affecting them receiving flow?

do you have fish or inverts that might be aggravating the montis?

how long have they been in your tank?

how old is your tank?

bioload?

not trying to be obtuse my friend, just posing the questions I’d ask myself.

 

[Tbg299]

What are your numbers?
what lighting do you have?
if your other sps is doing well, what’s the placement of the montis? Are they getting shaded by something? Is anything affecting them receiving flow?

do you have fish or inverts that might be aggravating the montis?

how long have they been in your tank?

how old is your tank?

bioload?

not trying to be obtuse my friend, just posing the questions I’d ask myself.

Salinity: 1.026

Ammonia/Nitrites: 0

Nitrates: 5 ppm

Calcium: 490

PH: 8.3

dKH: 9.2

Mg: 1500

Only level I haven't checked recently are phosphates.

This is a coral QT. They are on the same frag rack as the rest of the sps frags, at the top of the tank. Powerhead is a Sicce Voyager Nano. Filtration is a Seachem Tidal HoB filter with Seachem Prime. Lighting is an AI Prime using Coral Lab AB spectrum running from 9 am to 6 pm. Tank size is 10 gallons. I feed Rotifeast and Oysterfeast 2-3 times a week. The only issue I have been dealing with is brown hair algae. I have been having to pull the slime off my frags and plugs.