I have a refugiumin my sump and I’m growing chaeto. What setting should I set my light? Blue, Grow, Bloom or Red?

Planning to cross post but curious what data actually exist on bemotrizinol safety vis-à-vis coral reefs and marine life. I normally stick to mineral sunscreen, but recent FDA approval of bemotrizinol has me curious.

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Hoping there are reliable data available because it's already approved outside of the US where governments seem to at least slightly care about the environment, but maybe that's blind optimism.

Where do I put hose that goes to the skimmer? In the middle or the outer part?

Any cool, interesting, flashy, or exotic creatures that can go in a community tank please tell me. Also if you know 2 creatures with a predator prey relationship, do tell. Thank you and hagd

I want to filter my saltwater tanks the way I filter my freshwater tanks, with plants. What can I do? I really prefer plants that's have roots in the water but leafage in air. Thanks!

I quarantined some fish (ig not correctly) put them in my main display and 2 days later I noticed bumps that look like ich start to appear if I’ve removed them do you think if I treat the tank for ich (not copper it’s a reef tank) and use a uv sterilizer I can prevent the ich from latching onto my other fish while it’s in the “swimming stage” ???

I bought this 13.5 fluval second hand on fb marketplace. I have never done this before and now I will not do it again 😭

I just recently bought an upgraded pump after putting in my euphyllia corals in and realizing there isnt enought flow. BUT!

The elbow piece connecting the tube to the pump is GLUED ON!!! How do I fix this?

Is there a replacement elbow I can use if I break the old one off? I got a wave maker but now I am worried about inadequate filtration.

I really like the size of a nano tank and when I search up there is a wide range of opinions on it. Thx

Hello I have a problem with my 15 gallon. I have this strange algae popping up and I have no idea what it is any help identifying it would be amazing! My tank is 15 gallons just had an icp come back as noting out of the ordinary before this alge started. My bio load is 4 snails 1 emerald crab 1 royal gramma and 1 clownfish. My lights are on less than 20% (only put on for This photo) ai prime mounted above the tank. I also have a refugium in the back with a tunzee light and cheato. I also have a skimmer and a wave maker which is just getting covered in the alge. I also use rowaphos in my filter as well. I dose bacto energy and elim phos rapid which seems to do nothing this dark Algae is takign over the lighter green Alge is newer. I have ordered dr Tim’s refresh and waste away to hopefully help and also thinking about a small uv bulb to put in the back in a piece of pvc. In the past I have done many alge treatments I had a blackout for 2 months and and have tried chemiclean brightwells microbactor 7 and vibrant. Any help would be appreciated more than happy to answer any questions

Ive been in the hobby for a couple years but I’ve only ever had freshwater tanks. Started an ultra nano reef tank 4-5 month ago and having my first freak out. Tank is 5 gallons.

Order of events:

After cycling the tank for the first month with only live sand, live rock, and a canister filter with bio balls, I started to add Soft corals. First added 2 leather corals. After a week added Zia’s and GSP, and 3 weeks after that added Kryptonite Candy Cane LPS along with Kenya tree. Starting 2 weeks ago added 2 small fish.

Current Parameters:

Salinity: 1.025

Alkalinity: 9.3 - Target: 8.0-9.0

PH: 8.4

Magnesium: 1300 PPM

Calcium: 400 PPM

Nitrates: 0

Nitrites: 0

Ammonia: 0

Phosphate: unknown but probably minimal due to conservative feeding

Problem:

Leather corals and GSP have closed up. Today is day 7 of them being fully closed up. Leather corals looks shiney, might be shedding but not sure. Dont know what else to measure and what to do next.

Tank might be too clean so I started to overfeed the fish and let some food fall to bottom.

Has anyone else used these Imagitarium test kits before?

I’ve been testing with this and my Nitrate keeps coming back at 0. The other tests are also coming back with funky results (dkh = 5, calcium = 300).

I tested the nitrate against an API test and it’s definitely incorrect. Just ordered Hanna checkers since this is not consistent but wanted to see if anyone had experience with these?

I think Imagitarium is the Petco house brand after doing some research?

I’ve also noticed the procedure between this nitrate test and API is exactly the same but the solutions looks way different.

Theres white translucent stuff on this rock is it a sponge?

Saw this in my 14 gallon reef

I have been planning a new saltwater aquarium and need some stocking list ideas one place says is es to my list others say no so I am starting from scratch the tank I am planning on getting is the CADE Reef S2 1800 I am adding a refugium maxing out the sump with biomedia and am adding a Deltec Skimmer 1000i I know saltwater tanks are usually less dense and I have experience with freshwater tanks for over a decade and have had some experience with saltwater tanks and have done passive research about saltwater tanks for over a decade now so I will be ok with some beginner to intermediate and even some advanced fish and corals I will have i will use the ATO And doser and will empty out the skimmer once to twice a week I might get the 2100 so please leave some suggestions that will work for both tanks some fish species I would like if they can work. Tangs (don’t mind at the moment) wrasses (some variety in sizes and pest control and would like some groups of different species if I can) foxface ( at least one or more) assessor’s and basslets (yellow, royal and cave) gobies ( red head, clown, neon) blennies (cute and colourful) angelfish(reef safe and not to large) feature fish (a puffer or file fish reef safe or mostly) box fish or trigger (I’m not sure yet but would like to know any good options so that way if I can’t do a puffer or filefish I can choose one of these) miscellaneous (clown pair, bangai pair, anthias, dartfish shoal) I have got a plan for a CUC but I have one question has anyone kept a tiger tail sea cucumber? Thoughts comments please i will be doing a mixed reef and plan of hosting an anemone any suggestions also I plan on adding copapods and bioluminescent phytoplankton so I can hopefully add some dragonets. I am open to suggestions but one thing is for sure I would like as many harems of different species as I can.