SPS bleaching!?!?

[Dee12dee12]

I added new 250w mh 20k bulbs and the tips on this acro started bleaching. I think it's a tri color acro but I may be wrong. I lowered it from the top of the tank but the next day it was even worst. Here's a pic...

Tank 210 RR
Cal 450
ALK 8.6
Mag 1400 (2 days ago)
Salinity 1.026
Temp 77-78
PH 8.4 (API) I know I need a controller.


It sits pretty low in the tank now. Prolly about 20 inches from surface. My other acros are doing just fine.

Just a little help. Thanks!

 

[Dee12dee12]

^

 

[fishman1069]

Did you acclimate them to the light? Meaning, did you put screen on the top of your tank and pull sections off for a couple of days? Or hang the fixture higher and lower it evrey couple of days? You can shock corals by adding too much light in an instant

 

[Dee12dee12]

No I did not because they where under 400w MH and I have 250. Well I don't know how old the bulbs from the LFS are. I just ended up putting it in the lower section of my display tank. I have a canopy and can't raise my lights. Hopefully this works. Thanks for your reply.

 

[xclusive252]

if they are wild acros then there is a chance that is the reason this is happening unless it was in the lfs for a long time prior to you picking it up

 

[fishman1069]

No I did not because they where under 400w MH and I have 250. Well I don't know how old the bulbs from the LFS are. I just ended up putting it in the lower section of my display tank. I have a canopy and can't raise my lights. Hopefully this works. Thanks for your reply.

Yeah, you shouldn't have to light acclimate them if you reduced the amount off light they get. I didn't know you dropped the wattage. Good luck with them

 

[Dee12dee12]

Thanks

 

[Dee12dee12]

if they are wild acros then there is a chance that is the reason this is happening unless it was in the lfs for a long time prior to you picking it up

I picked 4 frags half off with an additional 50 percent off so I had to take a shot at the. I think they are wild. The other 3 are doing well. Thanks

 

[JARRETT SHARK]

Could be the lights but Looks like Alk burn also, What test kit do you lose? Have any swings? Do you have any other sps

 

[Dee12dee12]

Pauli said the same thing(ALK burn) but my other sps are doing fine. No ALK swings. I've been testing ALK every other day for the past two weeks since I've been fine tuning my dosing. I've been testing at 8.5/8.6 with Hanna checker.

 

[ecvernon]

People are saying Hanna alkalinity checker not reliable

 

[Dee12dee12]

I've compared to other test which resulted in similar numbers. What ALK test are people using these days.