Recently, say over the past month or two my anemones have become lifeless, usually closed or very deflated, or just sort of scrunched up.
Admittingly my CA
was about 90mg/L off "ideal" and my KH
got down to 120-140, however I have since corrected this and they are at "ideal" levels. The problem is that my anemones which usually are out and open and nice, look well, crap.
I have done two water changes of around 30% each, with a fortnight in between (this was about a fortnight ago) and cannot think of anything to cause this, except for a couple of things which I would like your advice on:
1. I went to the bait shop and got some frozen prawns, broke one in half and gave half each to an anemone. They both closed over on it and the fish picked at what was hanging out (and they are okay still).
2. I added a protein skimmer which has done nothing but remove all my cyno bacteria algae and does collect a decent sample of sludge on a regular basis.
3. My lights are about six or so months old. This is what I primarily think it is. They are just two three foot 35watt NO
fluros, one white one actinic.
4. My pre-filter pad hasn't been changed in about a month. Slack on my part yes, but hasn't caused problems in the past.
I have a number of fish in there and they are all fine without any signs of discomfort, but then again perhaps they have developed a tollerence? I also have probably around 20 corilamorphs of different size and they are wide open, impressively in fact. I also have a nudi coral (see my gallery) which is usually quite tough, but is also suffering from whatever is going on.
Oh, my pH was also about 8.0 but I have also since bought that up to 8.2 over a about a week using an appropriate buffer.
Can anyone cast their eyes over what this might be and offer suggestions? I am happy to answer any additional questions and test water qualities, etc.
My first thought is definately the lights but I am assured by others "who know" that twelve months should be when I replace them, not six. There's a degree of trust there also, as the assistant who seems very much on her game, turned down an $80 sale for a $3 sale of prawn bait. Either she was incredibly stupid or plain honest.
Thanks in advance.