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I already removed a third of it but next time I will just push it over. When I push it over though wouldn't that cause a spike because when I end up removing it all wouldn't I be removing 2 thirds of the old substrate at once?

They will spread very quickly and take over ur tank if not taken care of and they could harm ur fish.

It looks a bit like an aiptasia anemone. If they are in fact aiptasia anemones, they are definitely not good to have in ur tank.

Should I cut back on the feeding and not feed the fish tomorrow so that the bacteria has a day to build up slightly?

I'm not sure about that.

It might be cool to have a big school of like 11 anthias if you can meet their feeding needs. (They apparently need to be fed quite a bit). Or perhaps just get a few more chromis and then have a big school of those guys.

A third of the crushed coral was replaced with aragonite this afternoon. Most of the cloudiness came not from putting the sand in but from scooping out the crushed coral. That was done an hour and a half ago and the cloudiness in the tank is settling down. I did a 15-20 percent water change...

I will do a third of it today, a third next weekend, and a third the weekend after that. I have a shallow substrate so the rocks have most of the bacteria. The clownfish and goby are very small too so they don't make too much waste.

I have a biocube skimmer too but it doesn't make much water movement.

I have 2 powerheads. One is mediocre and the other is pretty bad. I also have a filter that creates some water movement. I will turn the powerheads off when I put in the sand.

I plan on sinking the bag to the bottom and then slowly letting it out at the bottom of the tank.

I will take out the clownfish for sure but I don't think I will be able to get the goby out. Should I take my mushroom coral out till the sand settles too or should I leave that in?

I think i will just get dry sand and put like half of it in tuesday. Next water change I will do the other half (which will be next sunday).

I have heard that putting in live sand would cause an ammonia spike. Is that true? I wouldn't do it all at once so it probably wouldn't cloud up the water too much. I think I would put the bag with the rinsed sand at the bottom of the tank and carefully spread it out after I had scooped out...

I currently have a crushed coral substrate that I vacuum every week but is constantly dirty. It has been in the back of my mind to replace it with sand and now that I am having some algae problems I think that changing the substrate might help remove some of the phosphates and such. How should...

Test ammonia, nitrites and nitrates anyway. If ammonia or nitrites are above 0 do a water change. That means ur tank is cycling. If they are not above 0 I would still suggest keeping a close eye on your water parameters for the next week or two just to make sure your cycle was actually completed.

I am having this issue too. Most likely from tap water that i thought was RO water (turned out I had been using the wrong faucet the whole time). I have been using the actual RO water for a month now and have the growth under control so its not spreading but it is unfortunately sustaining...

Get one medium piece of live rock and then the rest dry rock. The live rock will seed the dry rock with good stuff and it will all become live. You need a decent amount of rock in there so that bacteria can build up to break down the waste from the fish. Judging from ur photo, probably 10 or...

I would say get 1 piece of live rock and then get the rest dry rock. Dry rock is cheap and will become live. If seeded with the live rock the dry rock will get coralline algae on it after a bit too. The coralline algae comes in different colors but is most commonly purple and will cover all...

Those are most likely diatoms. Diatoms grow like crazy shortly after the cycle is completed. They will go away if you do water changes regularly and get those snails to eat it. Don't get hermits though because the hermits will kill the snails.