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I just wanted to know which of the following fish can live together, I have done plenty of research but wanted the insight of experienced hobbyists. My fish wishlist: Rainfordi Goby (pair) Purple dottyback Ruby Red Dragonet Cardinal (3) Exquisite & Red Firefish Starry Blenny Royal Gramma...

Hello all! Newly joined here on R2R and to aquariums in general. Having said that, I’m really excited to learn all about setting up and maintaining my first FOWLR tank and I was directed here for advice from seasoned pros. I’ll be honest, I know next to nothing about being an aquarist and...

Hi everyone I hope I can get some help, I am completely new to reef keeping after keeping fresh water for quite a while. I now have had my nano reef set up for around 6 months and started 1 month ago adding my 1st soft corals (some mushrooms, Xenia and GSP). My mushrooms where doing really well...

I will be setting up a new 300L tank soon but I don’t have a sump with it, what good options do I have for filtration preferably that wont crowd the tank with equipment?

I have a Red Sea Max E-170 (34G Display) with a pretty well-established ORA Black Ocellaris Clownfish and an equally well-established ORA Orchid Dottyback. My clownfish is the boss of the tank and makes sure the Dotty knows it whenever she swims over to his side. I successfully kept a Yellow...

In December i got my 1st reef tank a fluval 13.5 gallon i set it up with 5 fish and 4 small corals i lost 1 fish my fish dealer told me after 8 months that I should be ok well the new tank is a 125 gallon topfin I still have some Aqua Scaping to do

Hey hey folks names Josh - Most call me Circa.I live in Connecticut, self employed - I run a gaming network for GTA5, Ark, Conan and various other survival games. Some other fun facts. I have 3 Australian Shepherds, Kyrie 7, Jasper 6, Maisie 11months . . I used to be big in the reef world fell...

Hi guys, I bought a secondhand reefer 250. The previous owner rebuild the sump. Now there is extra space for more water on te right side, very lovely. However, on the spot where the water goes down into the pre-existing sump section there's a lot of noise. Does anyone have any suggestions on...

What’s up reefers this is my tank I’ve been working on its kinda of a mix of everything coral wise, 65gal with 2 ai primes Looking for some ideas to spice things up or whatever you have to say

Hello all! I am needing some prospective on some fish suggestions.. 40 gallon tank: 2 established clowns A new royal gramma basslet what can I get away with? I’d love as my as possible with what I am working with any and all suggestions will help! (just added new rocks reason why it’s murky)

Hello everyone, So i made a huge mistake as this is my first saltwater tank. I got my tank running about a week ago with some live rock and live sand. After about 4 days i decided to add coral as the store totally gave me misinformation. This is the light I have Lighting: 30W LED 12K White &...

Hi sorry for a totally newbie question but I purchased a full setup used that was meant to include live rock that had various corals attached. Sadly they broke the tank down a few days before delivering it to me so I am assuming all the corals died despite them saying they will “be fine in the...

Hi everyone! I’m Nicki! I’m relatively new to marine tanks and am brand new to here. I’m hoping to get some tips and tricks and support for maintaining the tank and meet some like minded people. I have some questions about some bubbles and some algae and plan to look through the old discussion...

Well, here I am. The prototypical cautionary tale: I bought this tank with big dreams and genuine interest, but because multiple life reasons and changes, it has been sitting in the garage since I picked it up in late 2018. Finally, I'm now relocating so I can't put this off any longer. I have...

good or bad? is there anything to be mindful of? any species that could be effected? so on and so forth.

What it says in the title, what is the NUMBER ONE easiest coral to keep? In accordance to hardiness and maybe beauty!

Hi all, I am planning on upgrading my saltwater aquarium to a 150L here in August. I am looking at creating a undertank sump system, as I have a spare 20L that is just sitting around. What all would I need to start the system? Links to everything, please? I have about $400 available for use...

Hello! A few days ago I bought a Tomini tang that has been doing quite fine. (Eat quite well/seen him grazing from the algae and Nori that is in the tank and starts to swim around more and more now) However He/she started to have a white "thing" on the side of its head that looks nothing like...

Hello. I am currently in the process of cycling my Red Sea Max Nano reef tank. I've added 20lbs of Carib-sea special grade live sand and about 15-20lbs of Carib-sea Life rock shapes (spored with bacteria). I've also added a mesh bag worth of Fluval bio tubes (for surface area for bacteria)...

Hello all, new to the forum here! :) i have been doing research into reef tanks for about a month or so now and while i cant setup a SW tank just yet i am planning for the future. i have multple FW tanks now ( i know they are a separate beast lol) but i am looking at fish/corals i would be...

So the story goes like this, I have been on a vacation for 10 days . My tank is 4 month old and the parameters have been stable .my brother took care of baby sitting while I'm away and tank is doing fine all this long except for ugly phase with different algae ( dino,red cyano). While I come...

Hello everyone! I am 3 weeks into my 55 gallon tank cycle and I just moved my over the tank filter to move it the right a little bit and out flew all this white fluffy/stringy stuff and it’s all over my tank! Is this good bacteria or is this bad? I just added two Clownfish in today. Salinity -...

I don’t know what he is doing just got him 1 hour ago just moving tail while against glass also shake head fastly from side to side creating sand dust everywhere

So I just got my new Neptune Alex today and got it all set up, but there is this “notification” that won’t go away and I have no idea what it means, I don’t know anything about the apex at all hardly

Hello everyone, after several freshwater tanks and months of saving up and research I’m finally looking to start my first saltwater tank. I am planning on diving head-first and doing a 96x30x30 acrylic mixed reef tank for my home office. The first area I’m having difficulty finding in my...