I have a Mixed tank filled A majority of sps frags. They’re all mostly frags right now. But lately my oldest acros have been RTNing any advice to what to do? I don’t want to lose more of my biggest stuff. My parameters are kept as followed (using trident 7.6-8 dkh using a calcium reactor so it swings at night), 420 calcium, magnesium 1300-1350. Nitrate is at 5, phosphate is at .05-.09. I have been slowly ramping up the light for the past 6 weeks in acclimation mode with my gen 5 blue xr30. Is there something that I need to look out for? I tried fragging to save my biggest ones but all the pieces always end up dying regardless (even dip with iodine). Any advice would be appreciated
Random RTN
- Thread starter Fallenreef
- Start date
- Tagged users None
reef lover
It's a reef thing....
Excellence Award
Reef Tank 365
Hudson Valley Reef Keepers
Hospitality Award
518 Reefers
My Tank Thread
Is your alk swinging that much daily?? If so I'd guess that's the issue.
My alk swings and has been swinging more than that everyday for 18 months, so I doubt that’s the issue. The alk paranoia in this hobby has gone bonkers. I bet it was caused by the new lights. Change in spectrum, intensity or photoperiod can stress acros out. A month ago I reduced my intensity by 15% thinking some of my acros were growing slow bc it was too much light. Well, I ended up getting rtn on my hw and another Tenuis has been stressed ever since.
I would not be looking at alk here either. Most of the time, alk swings are a low hanging fruit that people obsess about that usually is not an issue. Unintentional Red Herring.
I would also lean towards the lights. If it is just colonies, then are you lighting them correctly with more than just a point source? Colonies are a different animal than frags and need more coverage or else they can stress out.
Go back to the basics and double check everything. Recalibrate your refractometer. Check the TDS of your RO water. Check your temp with something that has Mercury in it. ...and so on.
Lastly, look for pests. They tend to affect colonies more since there are places to hide in the branches where predators cannot get to them like they can on frags. I know, I know... nobody thinks that they have pests, but look really hard and keep looking and have an open mind.
I would also lean towards the lights. If it is just colonies, then are you lighting them correctly with more than just a point source? Colonies are a different animal than frags and need more coverage or else they can stress out.
Go back to the basics and double check everything. Recalibrate your refractometer. Check the TDS of your RO water. Check your temp with something that has Mercury in it. ...and so on.
Lastly, look for pests. They tend to affect colonies more since there are places to hide in the branches where predators cannot get to them like they can on frags. I know, I know... nobody thinks that they have pests, but look really hard and keep looking and have an open mind.
