reef

I wanted to start this discussion now because I have some ideas that I would like to bounce off some folks before I start cutting lumber. I have a 8x2x2 acrylic tank with dual overflows. I’m going to build the stand, which by itself isn’t very complicated. This is where it gets tricky. I am...

Removed My Complete Hydro Set I Prefer To Sell As A Kit Includes The Following -HYDROS XP8 1.5 Yr Old -HYDROS Launch 1.5 Yr Old -HYDROS Minnow 4 Month Old -HYDROS Wave Engine LE + Icecap 2K Gyre 4 Month Old -HYDROS Triple Optical ATO Sensor x 2 -Hydros DC Micro Pump x2 One New Pump + One...

Purchased In Nov 2025 Was in Operation Approximately 5 Months Includes Skimmer Stand I’m Asking 290 Shipped I’m Located In San Jose,CA Reasonable Offers Only I’d Be More Than Happy To Post On eBay if you guys feel more comfortable , but will be run you $15 more to cover fees

Hey all! I'm Dmitry, just joining the forum as I return to the hobby after a nearly 15 year absence. Once upon a time I had a 72 bow reef and a 25 gallon sump; broke it down when I had to move to a new place (Queens NY to Manhattan). Now I've moved from Manhattan to upstate NY (sandwiched...

I have my Waterbox 100.3 tank up for grabs. The tank dimensions are 36"L x 22"T x 24"D. I purchased it directly from waterbox. The tank is in great condition, no major scratches. It comes with stand, schedule 80 plumbing , manifold on the plumbing to easily add refugium or chillers, and acrylic...

Hello, I’m quite new to reefing. I’ve transferred from freshwater I had quite the freshwater collection and breeding set ups… stingrays, rare peacocks and heaps more. Made the transition to reef tank as It all got too much and thought I would downsize into a single display tank and thought...

Hello, long time lurker but just started my first reef tank a week ago. I’ve been in the freshwater hobby for over 5 years and just recently made the jump I’ve been dreaming of. I am asking this question for a few reasons: 1. I’ve seen different threads on here with very different opinions...

Ok, so a little about me. In my 40's had a reef tank in my 20's while in school and poor. Eventually I realized with the lack of money and the constant moving maybe a Reef Tank isnt for me. So, I had the tank re-homed and have been wanting to get back into ever since. Now older and established...

I have a Red Sea nano max xxl 52 gallons tank. Nano mat and protein skimmer. I bought this coral 5 days ago. The tank is about a month or more old. It seemed very happy the first 3 days and then up to today has been barely extending polyps and shrinking in size. I checked my parameters and...

Howdy All! My name is Reinboordt and I last kept a reef aquarium with my dad when I was a teenager 20 years ago. It was a great tank but my dad was impulsive and expected me to do all the research on what he had purchased instead of before. Some major family changes and moving to the other side...

I wanna make like a journal type post to document things for a tank I plan on starting when I move, currently I don’t have much besides the tank itself and a gyre 3k pump. My budgets around 3000 dollars. Looking into lighting rn and a sump setup if anyone has reccomendations. I’m kinda averse to...

Hello so I've been in the hobby for about 6-7 months already! I started off with a 5 gallon tank! 4 months in I decided to upgrade to a bigger tank! So I ended up getting a tideline aio 31 gallon lagoon! This is my setup now please let me know what you guys think! Thank you so much! Salinity I...

Hey everyone, just starting out my reef tank journey. My girlfriend and I decided to start our own 75 galloon saltwater aquarium. Currently planning out some logistics, budget, space, etc. so still very early in the journey but excited to be here and honestly can’t wait to start. I’ve been...

I'm doing an experiment... I have two 15gal AIO nano tanks both with three chambers in the back, intake/filtration/output as is typical. I'm interested in putting a long thin LED bulb about 12" or so on 24/7 in the intake chamber (instead of a filter sock which I have removed). This chamber is...

Hello! I currently have a new 3 gallon reef tank and I’ve fallen in love with the hobby. I plan on getting a larger tank and I’m debating between the Innovative Marine 15 gal Fusion AIO or the 20 gal Nuvo Fusion (long). I plan on keeping it mostly a coral and invert tank but I’m thinking of...

I have a 24g cube that currently has: - 2 clown fish - 1 banggai cardinal - 5 hermit crabs - 1 conch - 2 nassarius snails What else should I add for CUC? Shrimp, more snails? I deal with hair algae 2 years in and that’s about it.

Hello, Like the title says I’m looking for advice about culturing phytoplankton. I’ve tried to start a culture a few times before and the same thing always happens. Here’s the information about the culture: Starting volume: 16oz - started with 1:2 ratio of phyto to saltwater. Started growing...

I have a small 3 gallon pico all coral tank on my desk that’s been up for about a year with no issues at all until about four days ago I noticed some coral missing, I kept watching thinking since it was just my tiny bit of pulsing Xenia it was whatever but when my green hairy mushrooms in the...

I’ve the following up for sales. Bubble Magus Curve 7 protein skimmers - Take both for $150, or $90 each. Both will need a new impellers ATB protein skimmer body only - $150. (26” tall) Reef Octopus SRO 3000 in-sump Protein skimmer - $180 (come with an extra impellers) This skimmer been...

Hi everyone, I currently have a innovated marine 112ext tank. I’ve always love corals and the look of fish swimming in a reef tank. But I’m not sure if this is okay and would like people opinion on this subject. Is 35 fish okay for a 35x35 x 19 tank? Currently below are the list of fish I had...

I know it changes some from night to day but this seems extreme, and the Kenya tree is always droopy when I get up in the morning. Could it be the macro algae?

I have a IM 20L AIO and now that Tax Season is here, i would like to upgrade to a 50+ gallon tank. I can't decide if i want an Innovative Marine EXT 50/75 or an INT 50/75. Here is my list of concerns: I hate AIO's i found out. It is way too tight getting my hands in there, i hate having to...

API tester I recently bought from a buddy of mine who purchased it from a coral shop in Central IL. I’ve had it for a few weeks. It also has 35 sealed testing disk. They are considered “expired” but have been comparing to Hanna Checkers and still in line. I have the email from my buddy for whom...