Currently in the process of cycling my first saltwater tank, I love it so far. I’m fascinated by all aspects of taking care of it and the possibilities of inhabitants. It’s only a 36 gallon and I already know I’m going to want a bigger one soon and I can get this 75 gallon tank new for only $127.

[SOLVED!] I have two Trachy and this newer one has a feather like tentacle that extends 6 or so inches out from it. I haven’t noticed this on my other one in the few months we’ve had it. Is it a sweeper tentacle? Or something else? Looks like I can only upload a photo and not a video so hopefully this photo was a good enough capture to help ID

This was a clown I got recently. It was eating well prior to its death, and died suddenly with no prior warning signs I could really see. What would’ve caused this and what should I do now? I have no other fish in my tank atm. Also it did turn into this whiteish colour when I found it.

Hello I’m new to the reefing hobby and just starting cycling my tank. However I can’t find any good information on the proper way to configure my AIO tank in regards to the water height in the main display portion. I don’t know if the water level should be near the top of the overflow grate or the middle or bottom. I added a RFG nozzle on the return and from what I read you need to increase the pump speed when doing that. So right now the pump is about 50% speed but the water line is right at the top of the grate. I’m also not entirely sure how best to control the height of the water level in the front main display vs the return chamber/filtration chambers.

For reference this is a UNS 60A 20 gallon tank.

Any advice at all would be appreciated!

Captive Bred and have had her for almost a year at this point. She used to be so tiny.

I have some Green Star Polyps that I noticed the tips of two tentacles are split at the end. My assumption is this is similar to lizards regrowing two tails occasionally following losing their tail (so basically just damage that was regenerated a little funky), but I wanted to know if anyone else had seen this or had any insight.

🪸🪸 CORAL 🪸🪸

Considering getting the IM EXT 100 or 150. Really love most things IM but I’ve been reading about how annoying it is that you can’t fit a filter roller in the sump. Ideally long term I would like a filter roller. I’ve considered just getting the stand, buying a Bashsea sump and plumbing everything myself but my inexperience in the plumbing aspect makes me nervous. Would it be worth it in the long run to just bite the bullet and take the extra time to plumb everything myself with a sump I will be fully pleased with? The ease of ordering the complete system is attractive though…

I know this sounds like a dumb question, but I can't find any mention of what systems people are using except the Hanna pH test kit. Are there any other recommendations?

I have a 60 gallon hexagon tank. That's been running for a couple months now. However, my tank seems to go through Weird cycles fir weeks, the corals will look super happy, and be doing very well.And then for a week, they get very, very sad. 440 calcium 1400 magnesium 8dkh 0 ammonia, 0 nitrites 8.2ph. Canister filter

I'm also having a hard time keeping nutrients up and wondering what i should do IE phosphates and nitrates

Also the lighting is not reef lighting as i hate the look. Its a 60w growlight

Hi everyone,

I’ve got a hermit crab that’s currently about the size of a ping-pong ball. While I was initially inclined to call it a Dardanus megistos (those huge hermit crabs, just a juvenile), I’ve been struggling to actually find the right physical indicators that would indicate that.

Broadly speaking, it has green eyes on long stalks, red/white candy cane antennae, similarly-sized claws with the right being very slightly larger, and it having a sort of reddish brown coloration with some spots. It doesn’t have the deep red/maroon color you’d expect from even a juvenile megistos, and also lacks the blue knees that a few species of Dardanus have.

Any leads or hits? I’ve included some photos of it under white light.

(Sorry for giant post, & Pump and power head off for the video)

This is my water box cube 20, it’s been in storage for 5 years after a fail on my first attempt. It’s been cleaned and completely redone with all new everything! Only thing I kept from first attempt was my rodi unit, Hanna salinity tester, light and power head, power head is an AI Nero 3, light is an Ai prime 16hd reef. Using Carib sea special grade arag-alive sand, and Carib sea LifeRock Nano Tree.

My cycle is done and I’m waiting for payday to add fish. I’ve kept a log book with every day from day 1 till now day 21. I know I want a ato unit asap, I’ve done every other day water top off since day 3, I’m really trying to do and learn everythingi can for this tank to be my little mixed reef tank I’ve dreamt of for so long.
((I had no idea what I was doing in 2021, I don’t even think the cycle was done when I added my first fish last time, it lived 8 days and I found it dead stuck to the back of the power head))

Question 1:
Eventually I want corals and a nem in the tank, mixed reef so think torches, hammers, zoas, acros, mushrooms, maybe bubble tip nem, wheat do you think the best placement for my power head is? The Nero 3 is awesome and can give 2000 gph flow rate, but I can’t mount it on the sides of the tank cause of kids will pull the outside magnet off lol, so where on that back glass would be best?

Question 2: what’s everyone’s favorite thermometer that’s not $100+ I’m on kinda a tight budget and need a better one then I have. The one on the side of the tank is NOT accurate, I borrowed a scientific thermometer to get a actual reading and my Hanna salinity meter is almost spot on, so that’s what I’ve been using, I’d like a temperature controller that will WiFi to my phone and tell me if there’s a problem. Using the 75W Eheim Jager heater btw, hope to upgrade to a TI one later.

last time I don’t think I cleaned or changed a filter sock one time, (I really didn’t know what I was doing) I’ve watched enough videos to know I don’t want to clean them, so today I ordered the NoSok filter floss cup thing to replace the socks, I think it will be nice but have any of y’all used them yet? I think they are new, but I’m sure that concept has been around for a while.

Finaly. What do you think about my rock scape, took me forever to decide how I wanted it to look, I like the tree idea, and the CaribSea kit made it really easy, I’m super happy with it, just want some other options. I have a couple little frag rocks that will be something, and a single rock in the back I hope to cover in zoas.

Let me know what you change or add or take away from my tank as of right now.

Looked into my tank at night and saw this things zooming around the sand bed

Please tell me it’s not bjd. Let me know what I should do.

Can anyone ID the coral in the middle here ? Had it for awhile but have no idea what it is lol.

Edit- I see a damn aptasia I need to nuke!

This colony is really starting to take off.

After killing three prior BTAs due to an immature tank (I’m a slow learner, apparently), I added this one when my tank was 16 months old. Look at it now!! I wonder if my clowns will ever move from the corner glass into it? Either way it’s become one of the most beautiful specimens in my tank.

Damn peppermint shrimp was picking at it. It definitely wasn't a camel shrimp either. I set up one of my battery ring cameras on the tank and in the night I saw him on it and sure enough in the morning the spot he was at for a long time had exposed skeleton. I kept wondering why seemingly random my hammer and frogspawn would be closed up with new damage. I never saw the peppermint shrimp go anywhere near it during the day or even while I was awake with the lights1 off. Seems he liked a 3am to 5am snack only.