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I'm not sure if everyone is using filter sock in their sump and if there is any cons when using it. I intended to reserve some nutrients for my filter feeders corals but one thing I notice after several weeks, my cyano and algae starts building up.

I have a reef tank with LR. My corals were doing fine before but when I started using phosphate remover my corals seem to start declining. I test with Hannah phosphate test kit and it reads 0. Any suggestion on how can I crank up my phosphate back to 0.03? Edit: I already removed the phosphate...

I am planning to upgrade my 60 gal to 135 gal reef tank but I can not decide to which system shall it be. I have to make a new home for my 4 inch yellow tang and 4 inch blue hippo. At the moment I am leaning on Monaco System for a 72 in. x 18 x 24 tank.

One of my live rock is being consumed by something. The rock is like a cheese with bored holes and one side has been obliterated. Tank is about 1 year old. I used flashlight after dark but could not find anything. Any guess?

I thought I should start this thread since there is an on going discussion on another thread but unfortunately removed by the originator. So what do you have, Actinic or Full Spectrum? Explain why did you choose it?

I recently got a pink carnation and to my surprise a hitch hiker is clinging to it. A White Brittle Worm which is barely noticeable due to its color blends perfectly. My question is, will it harm the pink carnation in anyway?

Some reefers use spectrometer to measure their salinity. My question is, how critical is it in having a very accurate salinity when changing water?

I just bought this AquaEuro with compact fluorescent light 6000k, actinic and led moon light. My plan is to set this up for corals only with couple of fish. I need some feedback or reviews for this tank. If you have one of this would you share what you have and some advice?

I am having problem with my water parameter and still trying to find a way to put it back on the right track. I Have done 15% WC twice and have dosed PH buffer, Mg and Calcium but readings bounces back. Has anyone ever used a carbonated water (sparkling water) to lower the alkalinity level? 60...

Any advice in keeping a Sea Apple in a 60 gal reef tank?

Just a quick question. If you have a sump is it worth to keep using a canister filter?

I have a 60 gal reef tank. I added 10 turbo snails and 10 hermits crabs. They did a very good job getting rid of all the nuisance algae. Question is, now that there is not much algae for them to feed shall I reduce their numbers or just give them algae wafers? My 2nd question is, is it possible...

I have no clue what these white spots are which appeared about 2 days ago. I started using the Reef Crystals salt by Instant Ocean about a week ago. Before that was just the Sea Salt. My dKH was too high a week before with low carbonate of 360 so I replaced 25% water and added B-Ionic Calcium...

I have aliens in my reef tank and I would be glad if someone can identify it for me. I have 2 of them hiding inside the live rocks. I happen to take a video with my cell but unfortunately it is tilting sideways and i can not edit it. They stretch and shrink like a very elastic rubber band. They...