There still continues to be a dearth of small crustaceans. When I look in the tank at night I don’t see any small crustaceans. The Mandarin continues to pick at the rockwork and doesn’t seem to be suffering.
the surge tanks are kept in the dark. one is empty and the other has several pounds of long established live rock with sponges et al. over that i put a layer of 1" size dry coral. that was 6 months ago.
when i look in these tanks and the garage tanks that are fishless i don't see any pods moving around. the only waer movement in the surge tanks is the inflow of water to fill. the surges are fed from water at the end of the sumps.
should i run a powerhead in the surges? should i fed these other tanks directly?
i think my water quality overall is getting better. i have been running the ro/di almost continually and changing out water with Seachem ASW. the cyano in the display has gone. the one Acro remaining is growing and the Heliopora is still doing well in the garage tank with lot of macroalgae seen below.
there may still be a few small crustaceans. i saw one Mysis shrimp the other night after lights out. i think it was just the exoskeleton blowing in the current but it means there was/is mysis still in the system. when i first set up the tank there were no fish in the system and the display tank was ruled by hundreds of mysis. i know many of the fish i have like them, the two hawkfish, copperband, 6 line wrasse, Mandarin, et al.
when i don't clean the viewing panel for a few days there are some very small, less than 1mm pods in the algae film.
there are lots of feather dusters in the sumps and garage tanks. i know the copperband in the display is likely eating any there.
in the display there are lots of the tube worms with two feeding tentacles in the sand. there is also hundreds of mini brittle stars all over the system. is there a fish that likes to eat them? i don't think a Harlequin shrimp would survive the hawkfish.
should i feed more? should i feed after lights out? i only occasionally feed after dark.
PO4 levels were 0.19 a couple of days ago and i used Lanthanum Chloride for the first time in many weeks.
there is a lot to do later today. 150 gallon water change while sucking out aiptasia and debris, clean skimmer, change carbon and GFO. clean tank.