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It's me again, in a what some would say appalling situation. I had to break down my tank, but wanted to salvage what I could to potentially rebuild. I'm kinda hoping some of this could work long term. Anyways, I ended up with 4 containers that I've had up for 1-2 weeks. Container #1 1/2 gallon - Tall & Narrow Emerald Crab Zoa Xmass Tree Macro Nerite Snails (2) Cerith snail The cerith died, it fell from the top and was on it's back for a while without moving. The zoa was pretty unhappy, the emerald was sitting on it (I removed it, before it notably died). The emerald just stopped moving one day (it was pregnant too, if that means anything) and is confirmed dead. The nerites are fine, same with macros. Just saw some kind of worm that's chillin. Did a massive water change, gonna keep a close eye on it to make sure the nerites and macros make it. Container #2 1/4 gallon - Wide & Short Pompom Crab Small Feather Duster Nerite Snail Everything is alive and well, no issues. I have no idea how it's doing so well. Container #3 Old Gelato Cup Hairy Mushroom Coral Brittle Starfish Asterina Starfish Cerith Snail The mushroom seems a little unhappy (it's shrinking up), but also looks like it's trying to split. Everything else is fine. Container #4 - Not pictured Old Gelato Cup Halimeda Brittle Starfish Spaghetti Worm The Spaghetti worm passed away, couldn't find the starfish (it's probably in the Halimeda?). The whole thing smells rancid. I did a massive water change and have my eye out for the starfish. I've been dosing Bacteria into all the containers (in very small amounts) and have done partial water changes. Any ideas why some of containers are doing so well? and why some are doing awful? I really thought containers #2 & #3 were going to be problamatic, very surprised by how poorly containers #1 & #4 did.

Hi, I’m new here, so I won’t be writing a 3 paragraph essay, as I don’t know the community. My emerald crab, turned brownish, and he’s just sitting there, not moving a muscle. I’ll include a picture, but I hope he’s not dead. https://www8.online-convert.com/dl/web7/download-file/5b3d0395-02b8-4071-b2ec-a9e4a08a5734/image.webp Here’s the picture, sue me if it’s a virus.

Grimes 15 gallon rimless now retired see my ReefSpace 900 thread in large reefs 😭 Equipment: AquaOne AquaNano 40, 15 Gallon AquaOne Nanoskim 40 Stock heater (55w) and pump Fluval SEA Nano LED AI Nero 3. Jebao dp-4 dosing pump DD jumpguard pro Filtration: 5 kg of live rock 1 kg TMC fine sand Macroalgae - Caulerpa Taxifolia System Support / Dosing: Vibrant Quantum LR Nitrate Remover Quantum Phosphate Remover pH up Livestock (updated 23rd January) Fish & Inverts: Yellow coral goby (Gobiodon okinawae) Blue neon goby (Elacatinus oceanops) Firefish goby (Nemateleotris magnifica) Pajama Cardinal (Sphaeramia nematoptera) Green Brittle Star 6 x Banded Trochus Snails (can't count now as there are so many babies) 1 x Bumblebee Snails (AKA coral killer) 3 x Cerith Snails 3 x Turbo Snails 1 x Astrea Snail 1 x Nassarius snail Peppermint shrimp Emerald Crab 3 hermits Coral: SPS: Montipora delicatula LPS: Hammer (Euphyllia ancora) Duncan's (Duncanopsammia axifuga) Acan (Acanthastrea echinata) Softies: Zoas - Radio Active Zoas - Red People Eater Zoas - blue hornets Zoas - Rastas Zoas - Kedds Reds Green Implosion Paly Mushrooms Yuma Red Mushroom Orange (Rhodactis mussoides) Mushroom Florida Ric Green Star colony (Pachyclavularia) Kenya Tree Coral 8th April 2020 (Jewel Vio 40) 27th Oct 2020 (AquaOne AquaNano 40) Nov 2020 Jan 2021

After around three weeks or so my tank cycled, ammonia and nitrites hit zero, nitrates spiked so I did a 75% water change the other day. As my tank was now covered with diatoms and green hair algae, I purchased a small clean up crew today, this was its composition. x2 Scarlet hermit crabs x2 Blue legged hermit crabs x1 Trochus snail x1 Cerith snail x1 Emerald crab I drip acclimated the hermits for around forty minutes, the emerald for an hours, and the snails for an hour and a half. So far the scarlet hermits have moved slowly on the sand eating detritus and algae, while the blue legs are much more active, moving around the tank and climbing up on the rock work. The cerith snail has mostly been crawling on one piece of rock, and the trochus was on the sand before moving up the glass. I would have to say that the emerald crab is the most entertaining member of the CuC so far, its been climbing around the rock work, through caves and crevices eating hair algae like a beast. Interestingly enough it appears to be missing one claw.I know some people have problems with emeralds, but i'm very impressed with mine. Here are some pictures

So I bought an emerald crab after a lot or reading. Some said yes they are reef safe some said no. Lesson learned if there are no's don't get one. Mine almost headed to the toilet tonight. Caught it eating my hammer coral Whole tentacles at a time. Not a reef safe critter. He is off to the lfs Monday. Good by pest.