help

I’ve had this piece of green birds nest coral for about a week now and I noticed this morning there’s relatively no green left and it’s turned overall white. What is causing this, can I save it, and should I move my coral?

I’ve had a Duncan for a half a year is so now, and after a friend over feeding the tank a few things showed up. There appears to be something new growing on it, but it doesn’t look like a new Duncan head. Additionally, I think there is some sort of black bubble algae, should I just leave that...

Hello everyone my Midas blenny in a QT tank with a few tangs and a clown fish. Yesterday I noticed he had a cut on this side. He’s still active and eating. I wasn’t sure if it was a cut from one of my tangs or uronema. I’m about to take him out and put him in a different tank but what’s the best...

Just wondering if this 36w uv is too much on a 90 gallon system. If not how much flow would I want through it

Hi folks, I have always dreamed of having a saltwater tank but considered it a pipe dream. Yesterday on a whim I bid on a used 100 G commercial tank from a spa that was closing down. Well... no one else bid. At all. So they offered me the others. Tomorrow I have to pick up 31 saltwater tanks...

Just got some new gsp and planning to get it carpeting the back wall. Bought it from my LFS but a new person packed him up for us and they seemed very new and not sure of which coral was which and I didn’t notice this other coral (?) that was on it. Can anyone tell me what this is? Just want to...

Hey everyone, Pretty sure a Feather Duster caught a ride in my Goni, but is it harming by setting up camp inside the Goni skeleton? Here are videos from a week ago with the gonis extended but now the Goni hasn't come out like it used to. the FD sticks out of the dead (darker) part of the...

I would love to hear about other people and their perspective or subjective opinion on what they think has been the hardest part of Reef keeping for them. Maybe it's the money, maybe it's the endless learning curve as we aren't all professional chemists or marine biologists. Maybe it's the...

Hi. I am in the process getting ready to set up my new tank. I had bought supplies back in 2021 when I was going to convert my existing tank to salt but the project went on hold. I am finally getting the motivation to start it up again. I was wondering if there would be any issues using these...

Hey, In the process of getting a skimmer and was wondering if an octopus 152-s would be too big for my tank ? (Red sea reefer170) It’s a cracking skimmer but I don’t want it to be too overrated for my tank. A lot of people seem to run a BM curve 5 on the 170 tanks and the octopus is rated...

Hello, so I went through a loss in my family and work stress. So i did the bair minimum for my new tank it is a 525 red sea ( had sand water and dry rock in it pump heater powerheads). Dr Tim's fishless way. I have a 75 gallon I am planing to transfer over to the red sea tank. I did add a lot ro...

Hia, Im wanting a skimmer for my reefer 170 that im planning on making into a mixed reef, i have found a great local deal for a Reef Octopus Classic 152-S my only concern is would it be oversized for the tank ? Ive also been looking at a bubble magus 5 or a 3.5, TMC 300 or 500 pro but they're...

Hi! Long time reader but first time poster. I have over 12 years experience keeping FOWLR and reef tanks and this tank is giving me the most issues out of any of them. This isn't my first time dealing with problems, this is just the first time i have never been able to remedy it without posting...

Hi, might someone know what this is in my tank other than green algae? I’m trying to bulk up my cleaning crew so if I know what this is maybe I can get a crew that can help get it out. Thanks!

I do not know how to write this post in a condensed fashion, I am going to try my best to keep to the relevant information but I hope any readers do not mind a bit of context for this tank as I think it helps explain it's current state. If you do mind, at the end of this post is the all the...

Hey was wondering why my Regal tangs now has a big white spot on him!! Let me know if anyone has any information and or solution don’t want my fish to die (Could be scratching from the rocks idk)

Our BTA has got half way through the intake into our sump. What do we do? If we try to gently remove him he balls up and he doesn’t seem to be moving either way without us doing anything. He did block the sump completely dropping the level cause the water couldn’t get through but currently half...

Hey everyone, im new. I already have a reef tank, but it didn't go very well, many species died, such as corals and fish. I think this was due to overpopulation ( i add like 7 species including tangs) in 100lts. Now, I want to make a shallow reef without sump and skimmer. Can you give me your...

Hi, I’m new on reef tanks, I recently started 4 months ago, water already cycled have a little bit of diatom and I have four hermit crabs, however I saw something weird growing from the back of my aquarium can anyone tell me what it is?

Hello, Today I was testing my new auto feeder and I accidentally fed way too much it's all over the place. My immediate response was to try and suck some of it out during a water change. I probably got about 1/4th of it out but there still is way too much in the tank. My fish are already shaken...

Hello dear Community, When I was looking at my reef tank today I noticed these two pink objects. Unfortunately I don't know what it is or whether it is good or bad. My tank has been running for about a month. Thank you in advance for your help.

Hi guys! A few days ago I bought a new tank, so I've been working on plumbing it for the past few days the emergency PVC pipe is leaking and I just can't find a way to fix it, it is leaking from the top of it where it connects to the overflow box, I already added Teflon tape, and the leak...

Hello everyone, I have a 55-Gal Tank and Today I am looking into Lights for my tank. I currently have a FOWLR tank, and I don't think Ima add coral for a while as I'm new to the hobby and trying to learn before jumping in! With that said I don't mind getting something that will support corals...

Hi guys! I recently bought a new tank, now I’ve been working on plumbing it for a couple days and it’s almost done! Just came across some concerns I noticed my overflow box has water intels above and below (like the drawing I attached) so I’m concerned that my main water drain PVC will drain a...

Hello all! I just purchased what looked like a healthy torch frag, but when I got it home I noticed an issue. With the polyp receded I could see that part of the skeleton is exposed and flesh is gone from a sliver of the skeleton. It has been in my tank for about an hour and a half now and it...