I bought 100 lbs. on April 26th from Harbor Aquatics. I have had virtually no ammonia spike at all. Nitrites went slightly up, but my live sand bed wasn't fully mature, so it could be residual from that as well.
Most of the Sargassum seaweed on my live rocks has been munched down by critters or died back, apparently because I have too much light. In it's place, I have identified at least 11 different types of plants or macro-algae, most of which look better than the Sargassum anyway.
I think there has been at least one reproductive cycle from the micro-critters, because I have seen a recent explosion of copepods on the glass, worm trails in the sand, swimming worms that come out during my simulated dusk phase. (Tank lights off, with weak room lights still on.) Tiny unidentified snails less than 2mm in length. Amphipods making little burrows under shells and in the holes in the rocks. (Appearing to prey on the copepods)
In addition, larger creatures that hitch-hiked include (at minimum):
6 Stomatella snails
1 Large snail (Believed to be a whelk, but so far has not preyed on the Stomatellas. Seems to dig through the sand for food.)
2 Bristleworms
4 other worms (look like small earthworms, possibly peanut worms)
1 unidentified strange Nudibranch (seems to be growing, although apparently Nudibranches are specialized feeders)
1 unidentified light avoiding anemone
1 small clam (Possibly some more in some rocks)
1 larger clam (Spondylus varians possibly)
2 unidentified starfishes (1 possibly if starfishes can change color from white/orange to blue/brown)
2 black sea cucumbers
Some pictures are on this thread:
New Live Rock
[ May 08, 2002: Message edited by: Super Cow ]</p>