Just started SPS in my display tank.

[Saisori]

I just relocated some of my acro frags from a rack to the rock and have seen some white spots on a single acro. I'll attached pictures below.

I usually do a 8 minute Coral RX dip and let the frag sit on a rack for 2 week to light acclimate.

Parameters:
Cal 540
Alk 9.6
Mag 1450

Lightning 2 Radion XR 30 and 4 t-5. Par meters show 230-260.

Thinking this might be AEFW? These are the first acros I have introduced.

Affected Frag.



Not affected.

 

[TX_Punisher]

I’ve lost frags due to some dips especially the smooth skin Acros.

Is your cal always that high?

 

[Saisori]

I’ve lost frags due to some dips especially the smooth skin Acros.

Is your cal always that high?

yeah it comes out of the rodi at around 560.

 

[Flippers4pups]

Could be irritated from handling. From the pictures, I understand they look like they were taken under white light which pales colors, but they do look rather pale.

What's your N03 and P04 at?

 

[Saisori]

Could be irritated from handling. From the pictures, I understand they look like they were taken under white light which pales colors, but they do look rather pale.

What's your N03 and P04 at?

The picture was taken with lights off.

Nitrate at 5-10.

Phosphate at 0.02

 

[29bonsaireef]

Does not look like AEFW. Looks like small abrasions from remounting, imo. The first one looks like it was a pretty fresh cut frag

 

[Highgrade]

yeah it comes out of the rodi at around 560.

I’m confused, your Calcium is that high from just plain old RODI?

 

[Saisori]

I’m confused, your Calcium is that high from just plain old RODI?

That what my red sea cal test shows.

 

[Highgrade]

That what my red sea cal test shows.

Wow, do you have major hard water build up?

 

[Charlie’s Frags]

The picture was taken with lights off.

Nitrate at 5-10.

Phosphate at 0.02

What are you doing to lower your po4 to 0.02?

 

[Saisori]

What are you doing to lower your po4 to 0.02?

Using Seachem Phosguard

 

[Saisori]

Wow, do you have major hard water build up?

Not sure, I live in an apartment complex. I know they do sewer maintain pretty often.

 

[Highgrade]

Not sure, I live in an apartment complex. I know they do sewer maintain pretty often.

What RODI unit are you using and when was the last time the fiters/media was changed? Those Calcium numbers seem really high for RODI without anything else added.

 

[Charlie’s Frags]

Using Seachem Phosguard

Get rid of that ASAP. Your corals are starving. Sps frags need 0.08-0.2 po4. All the big name vendors keep their po4 around 0.10. I keep mine 0.15-0.20 and they’re beautiful and growing like crazy.

 

[Saisori]

What RODI unit are you using and when was the last time the fiters/media was changed? Those Calcium numbers seem really high for RODI without anything else added.

I'm running BRS 5 STAGE 75GPD PLUS RO/DI SYSTEM

Replaced the DI resin about 3 months ago. Nothing else replaced since TDS has been showing 0.

 

[SeaDweller]

I'm running BRS 5 STAGE 75GPD PLUS RO/DI SYSTEM

Replaced the DI resin about 3 months ago. Nothing else replaced since TDS has been showing 0.

I’m confused. If there is 0 TDS in your source water, post RODI, then how are you getting 500 ppm Ca on RODI?

 

[Saisori]

I’m confused. If there is 0 TDS in your source water, post RODI, then how are you getting 500 ppm Ca on RODI?

What should it be at?

 

[SeaDweller]

What should it be at?

Well 0 TDS Water suggests that there shouldn’t be anything but pure H2O, and seeing how RO membranes reject Ca... there should be ZERO calcium after your DI resin. Especially if your membrane and filters are new. If you have 500 ppm Ca after RODI, then your salt mix would add to that. Are you sure your test is correct? It just doesn’t make sense to me that you’re saying you have 0 TDS water and high Ca in your freshly made RODI

 

[Saisori]

Well 0 TDS Water suggests that there shouldn’t be anything but pure H2O, and seeing how RO membranes reject Ca... there should be ZERO calcium after your DI resin. Especially if your membrane and filters are new. If you have 500 ppm Ca after RODI, then your salt mix would add to that. Are you sure your test is correct? It just doesn’t make sense to me that you’re saying you have 0 TDS water and high Ca in your freshly made RODI

I can test again with red sea and hanna. Not sure if those are the best.

 

[Jaysushi]

Since those test kits are designed for saltwater and he is using RODI water, won’t the test results be inaccurate?