55 gallon

Hi all, new member here. I was in the hobby around 2001-2005 with a 45 gallon tall FOWLR tank and man, have things changed. I currently have a 55 gallon (standard rectangle) FOWLR tank with 60 lbs of sand and 80 lbs of rock. I’m about 3 months in, finished the nitrogen cycle a month ago and...

Hello! I originally had a fluval 13.5 but converted my old set up into our old 55 gallon aquarium. My dad is currently taking care of it while I’m at college so it’s been difficult for everyone and we’ve decided to move our focus from corals to cool fish instead. There’s some random frags left...

My most updated shot of the tank: Updated - April 5th, 2026 Origin story! Hello! My name is Andres and this will be a progress journal of my first ever saltwater aquarium! I am brand new to the hobby when an opportunity arose from a colleague to inherit their saltwater tank as they had to...

Pros and cons of this protein skimmer. Going to have a heavy bioload in a 55 gallon tank with reef and fish

Hello all. Its been a bit, basically, I scratched the 20 gallon, had a hard time establishing it and when I did i got that purple algae and couldn't get it to go away... So How would I go about removing it from my live rocks so I can introduce them to the new 55 gal tank? When should I add...

I have 3 cats and I need a cover for my 55 gallon tank. It does not have the center piece where you can put two covers. I'm having a hard time finding one that will fit. I also have the NICREW 150w light so I need any recommendations.

I currently have a 55-gallon tank and have a sleeper banded goby, Foxface, clownfish, and a hawkfish in the tank. Thoughts on adding a blue-spotted puffer fish or is the tank at capacity?

Hi, I plan to stock my 55 gallon soon and I want some ideas for the stocking list These are the fish/invertebrates that I want for certainty : 2 ocellaris clownfish, 1 hector's goby (I will add after the sandbed is more "established"), 1 red firefish, 1 cleaner shrimp, and cuc (mix of...

Hey guys I would like to show my 6 month update on my 55 gallon reef tank. Everything has went surprisingly smooth the biggest struggle I have had with it is the sand bed being so dirty. Would love some tips or advice to have this thing in great condition at the 1 year mark. Parameters 1.025...

I was cleaning my 55g aquarium and I flipped it over to inspect it further. It seems that some of the bottom trim flexes a little when I try to push against it. Is this structurally concerning? It doesn't seem to leak from what I could tell - it's been holding water for days.

Give me some good fish ideas please! So far I have: 2 clownfish 1 baby yellow tang 1 royal gramma basslet 1 firefish 1 engineer goby is this overstocked already? I want some big fish but only if they can stay in a 55 all their life, unlike the tang. I plan on rehoming the tang once it gets big.

Dismantled my fish room a few years back and finally getting around to selling everything. First up are (12) 40B painted on the bottom and sides white with stacking oriented book end style. Complete turn key setup. Includes four Gorilla 60" racks that stacked in pairs allows all twelve to be...

Hello, I bought one reefled 50 light for my 55 gallon mixed reef. I was recommended to by two by my local fish store. But I only bought one because of the price. Before I bought the second I wanted to know if they were good for 55 gallon tanks. Thanks for any response or help!

Tank: 55 Gallon Breeder, Fiji Pink Live sand, Dry rocks So I am on day 13 of my cycle. On day 1 I added Dr. Tims One & Only & Pure Ammonia and waited 24 hrs and tested the water. I had Ammonia and Nitrites present. On day 12 my Ammonia & Nitrites went to 0. So yesterday I dosed more Ammonia to...

I was wondering if I could keep these fish in a 55 gallon a dwarf fuzzy lionfish,Tomini tang, x2 flame fish angelfish,Toby puffer, blue streak wrasse also is their any more room after this or no also the tang is a rectangle and has plenty room it has like 25 lbs of live rock

Hey guys, So I’ve been checking out various fish I can add to my 55 gallon reef to round things off. One of the fish I’ve been looking at is the flame hawkfish and I saw that Matthew recommended this fish in a stock list similar to mine for a 40 gallon reef on the BRS channel. I would really...

How do you all go about deciding where to place your corals? I’m not talking about high or low light/flow, but more so where within the area of the tank they would succeed? I’ve narrowed down a list of possible corals I’d like to add, but haven’t been able to pull the trigger on any because I...

First ever saltwater tank! Started with bc an Aqueon 55 LED starter kit and went to upgrading! Current upgrades include: Cheap soon to be replaced powerhead Viparspectra 165 lights Next up I will be upgrading powerheads and filtration! Current Stock Ocellaris clownfish Orange ricordea...

Hello! So I currently have a 55 gal FOWLR tank. It’s now about 4 months old. Has been cycled for a month or so. I am new to the reef tank hobby and I believe I have a decent handle on maintaining a healthy/happy tank. I’ve definitely made some mistakes in the beginning and have learned so much...

I currently have a juvenile ocellaris clownfish and an orange ricordea mushroom in my tank. In order I am thinking of adding these fish though I’m not sure if adding all of these are possible or if I would need to cut down. black and white ocellaris clown Royal gramma or carpenters wrasse...

I know I know.. 55 gallons suck but here I am.

I have a 55 gallon display with a 20 gallon sump. Moving over from my 32 biocube is a pair of clowns, a Royal gramma, a tailspot blenny, and a tiger pistol shrimp. The pistol used to be paired with a watchman goby and I’d like to get him another goby, looking for suggestions on what other gobies...

Relocating to Texas soon, as much as I don't want to part ways with my fish tank, unfortunately I have to. -55 Gallon Aqueon Tank Dimensions Length 48.75 IN x Height 21.25 IN x Width 14 IN. -Comes with two bifold glass lids. Icecap 2000 Wifi Controller and Pump -Reef Octopus Protein...

Currently have a 55 gallon long tank , planning on upgrading to a 125 or 150 gallon in the next 4 months , how bad would it be if I added a baby naso tang in there for those 4 months ? Currently in tank: 1x Orange spotted goby 2x oscillators clownfish

Hello hello. I just got into the hobby after moving to a new place that would have the space for a 55 gallon tank. I figured going BIG but not TOO big would be a good way to start. Everything was going good for the last 5 months-had a lovely torch coral that was doing fantastic, a hammer that...