Ok so for those interested in the update.
Nutrients
Po4 and No3 have been up and down. I attribute the spike of last week to a failed dosing motor. Things started looking good the week before.
Manually dosing Nopox at the moment until I pick up a replacement motor. 3ml dose at the moment.
I have been trying to manage the spike with 30% water changes weekly. However, this has proven costly and opted for the nopox route. Fingers crossed that it works.
Coral
Some new additions already shared in the previous posts. Unfortunately, not all good news. Lost an acro last week. It seemed like a tenius species . My walt disney also took a knock
Was able to frag off small pieces that are haning on for now.
A number of other acropora (loripes and vilada, marvin the martion (fuzzy af acro) and some unknown aus acro) showing some recession from the tips. Spots on the tips turn milky white and slime a fair amount before dying back. This is very slow though and I trim the tips.
Millepora, montipora, seriatopora, hystrix, acropora carduus and other deep water acros (excluding loripes),acropora yongei/stag horn types and acropora nasuta seem unaffected by this. There are some other acropora I have which I have not been able to identify yet.
LPS that I have also did not show any stress.
Initial thoughts were:
- Pests: not saying this is impossible, but I follow a religious dipping regime for any new coral. Double strength as a minimum. Bases are cut off. Any dead or exposed areas are covered with glue. 6 line wrasse for pest control. Was thinking that more corals might show stress/recession? Just weird that the tenius species showed these symptoms.
- Trace elements: Considered maybe some heavy metal being elevated. Did use some polyfilter pads to see if there were any signs of high metals. Pads have to date only turned brown. This was also the reason for the possible ICP test. Raised some queries with the supplier of the tests, but no answer yet - maybe my questions were stupid
Long story short, no idea what caused this.
Clean up crew
Added 2 more nassarius snails (finding eggs on a regular basis). Did add a dolabella sea hare but it seems it died - it missed all the green hair algae.
Equipment failures
1 Zetlight E100 failed in December. Good service from it though.
1 motor on my DP3 is dead.
Apex pH probe in question at the moment - drifted 0.24 in less than 2 months? Not too concerned as trend data is more valuable to me and running no equipment controlled by the ph probe. The notification on the other hand can get annoying due to the inaccurate readings....
Not a failure but recently discovered my radion was mobius ready. Did the necessary updates etc. Mobius running well for me.
Fish
Doing well - fat and healthy. Seems that my male anthia is very active lately - especially close to lights out. Breeding behaviour perhaps?
Cabinet
My wife is breathing down my neck due to this not being completed on time. Finished 95% of the project. Require some minor items to finish it up completely. Difficult with work at the moment but hope to wrap this up by end March.
I did encounter a problem in respect of the cladding for the hood - warped panels.....working on a solution.
Note for future, skip 8 mm shutterply as a material to use for projects.