Questions - Need some input

I am looking for some help with my 65 gal, 3 year old tank. over the last few months some of my mushroom died now some of the zoos seem to be struggling. i know what I did yesterday will not help over night but I just changed all bulbs (pc's 96 w) replaced all RO/DI filters. here are my latest #'s calcium 500 I know it is high spilled some when I added
nitrate \ ammo 0
p h 8.0
alk 2.6
mag 1050 this is the first time I ever tested this
salinty 0.22
temp 76 ...

Hello all,

I have posted a video of a critter that I had the opportunity to film. The focus gets better after a few seconds.



I am not sure what the little guy is, my educated (or relatively uneducated) guess is that it is a type of nudibranch. I have see this one in my tank on several occasions, but this is the first sighting in a while. While he is still rather small I would say he has tripled in size over the ...

Hi to all i have a 30g cube mixed reef 8 months old. i was planing to replace my old rock scape and sand to new rock scape and sand. the plan is i will remove my corals and LR and shipon my sand, then i repace it with new sand and put the new rock scape and place all my corals. do i need to cycle again my tank for replacing all my LR and sand to new one? TIA!

Has anyone ever cut their starfish to create more starfish? I have a serpent starin my 75 gallon and I'm about to move everything over to a 180 bowfront. I don't know if I could actually bring myself to "cutting" my starfish (on purpose), but the money-saving idea came to me since I know that Echinoderms have regenerative capabilities. Just wondering if anybody had tried, or considered this method of obtaining more starfish for your tank.

I have a small tank that the plain green/brown zoos are going nuts. What is the best way to clean off the ones I do not want? They are acting like weeds.

TKS

Craig