RTN Bottom up on SPS

[klondike4001]

By the time I got back to my tank the lights were out already for the night, I'll get pics and post them tomorrow

[lt1z28]

Alkalinity is within the acceptable range so I don't think that would be the cause. Another frag of that staghorn would be nice! Thanks for the offer!

[klondike4001]

Here are the pics...

#1 Efflo Base


#2 A. Valida Base


#3 ORA Rose Milli Base



Since Alk is where it's supposed to be... anymore ideas?

[apedroza]

I get the same thing happening on my sps. Usually on corals that get very little light on the base.

[klondike4001]

yeah, but the light on the base of the valida, isn't the flash, that's a 250W mh, so... new problems? Doesn't look like AEFW, but I'm not sure anymore, nothing else fits.

[reeferRob]

I had the same thing happen to me this weekend, I originally thought AEFW, but I still have not seen 1, no red bugs, All parms good, dkh 11.5 Ca 450 temp 75-76 SG 1.025 Mg 1350 I did have to raise the Mg last week but it wasn't that low.

So far lost over half my tenius, and some dead spots at the base of a samoensis, and 2 unknown acros.

I did switch salts at the beginning of July when I replaced the tank from IO to Red Sea Coral Pro, thinking of switching back?


Rob

[klondike4001]

I switched salts, but have only used the new salt but once. Any that was in May, I fould another 2 water changes worth of my old salt when I packed and moved.

I'm really at a loss.