Stirring up the bottom?

rmarc005

New member
Our sand always looks "dirty". It has algae on it constantly- what is the best way to deal with this? The guy at the LFS suggested a sand star fish? Anyone have other opinions?

Thanks, Gina
 
Gina, a sand sifting star fish will stir up your sand, but as it does this it's searching for food to eat and will eat all your sand critters (other good animals that keep your sand bed live).

How old is your sand bed?

You may want to look into Nassarius snails, they hide in the sand and do a pretty good job of stirring up things.
 
I'm no expert, but I have a sand sifting goby (Goldheaded... had a Diamond Goby before) and he shoots around the tank filtering sand all day preventing a similar problem that I had. They do have some downsides... they can dig under your rocks making them unstable if you don't have the rocks sitting all the way on the glass bottom of the tank, they are known for jumping out of the tank (especially until they settle in to a new tank) and some of them have a tendency to carry sand as they sift, dumping it on corals and rocks that are close to the bottom. Other than that, I think they're really fun to watch and will definitely get the job done.
 
Re: Stirring up the bottom?

<a href=showthread.php?s=&postid=7292650#post7292650 target=_blank>Originally posted</a> by rmarc005
Our sand always looks "dirty". It has algae on it constantly- what is the best way to deal with this?

first control your nutrient imports(cut back on feedings).

what filtration do you have?

what do you have in the tank?

can you describe the algae you have?
 
Fighting conch. Will clean under and over, and doesn't bother anybody. You don't say how big a tank, but the conchs can handle it. Don't get it too clean. Your tank will need a bit to feed some of the more useful inverts.
 
Thanks everyone!

I have a 55 gallon. The algae sits on the surface of the sand-mostly green, some brownish. It starts to "layer". We have 4 fish-a Tang, Maroon Clown, Fire Goby? and a Mandarin. We have various Hermits one large snail (don't know what kind) and lots of tiny little snails. Three anemones (2 clown and a green) and a Green Sea Star. The filtration system is a Via Aqua Multi-skimmer and two pumps to push the water around the tank. I think that answers all your questions. A Cucumber sounds fun, but I thought they could release neuro-toxins if upset?

Gina
 
Oh- I forgot- we cut down are feedings to every other day after we bought the tank from the previous owner. I don't know how old the sand bed is because I don't know how long he had it. It is "established" for sure, perhaps for several years? And we also have a "Flaming Torch" coral and some mushroom corals and zantids/polyps (sorry, I probably killed the spelling on the last two).

Gina
 
<a href=showthread.php?s=&postid=7294489#post7294489 target=_blank>Originally posted</a> by rmarc005
The filtration system is a Via Aqua Multi-skimmer and two pumps to push the water around the tank. I think that answers all your questions. A Cucumber sounds fun, but I thought they could release neuro-toxins if upset?

Gina

a Cucumber is not the answer. they can release toxins into the tank(when they die or are disturb) but you're having a filtration problem IMO.
 
from what I read tigertail cucumbers do not relaese toxins into the water if they die like most others. but don't " me on that:p
 
Nutrients are the issue, cyano and green slimy algae will form on the sand surface in mats. In a newer (or just recently moved) tank it's normal until you get nutrient import / export balanced. Pull the mats with a net and eventually they'll all go away.

As for sifting, I use an army of cerith snails (about 30 in a 125, which is a lot of snails given my nutrient poor tank conditions) and a handful of nassarius. I'd avoid the starfish as well, as they'll eat the other beneficial critters in the sand.

I strongly suggest a skimmer upgrade (coralife super skimmer is a solid, good bang for the buck unit) and potentially a circulation pump upgrade -- how much flow are your in-tank pumps putting out? You should be shooting for at least 25X turnover in a mixed reef, or 1375 gallons per hour among all the pumps. Both a skimmer upgrade and a flow upgrade will help with this problem...
 
Thanks all!- I don't think "upgrades" are an option at the moment , although I have taken down the info for the future. We just bought the tank and have doled out more money for "stuff" then my husband assumed we would (he underestimated my commitment which of course sometimes = money!) Anyway, I bought some of the Narrisus (spelling?) snails they seem to be helping and I think I will get some more!

The sand sifting Mandarin sounds great, but would it not get a long with our other Mandarin? Also- just curious- what is a "Fighting Conch?".

Thank you!
Gina
 
<a href=showthread.php?s=&postid=7301152#post7301152 target=_blank>Originally posted</a> by rmarc005
.... Also- just curious- what is a "Fighting Conch?".
Basicly, a fancy snail :)

59488mini-fighting_conc.JPG

Photo by:klaramore
 
Gina, a sand sifting star fish will stir up your sand, but as it does this it's searching for food to eat and will eat all your sand critters (other good animals that keep your sand bed live).

Am i doing a bad thing when i spot vac the sand? i am sucking the critters out of the tank?

And what is wrong with a Via-Aqua multi skimmer? Mine pulls alot of gunk out of the tank. The amount of gunk slowly went up with the amount of animals in the tank. So mine seems to be working just fine.

Chris
 
<a href=showthread.php?s=&postid=7305893#post7305893 target=_blank>Originally posted</a> by shannahan14
Gina, a sand sifting star fish will stir up your sand, but as it does this it's searching for food to eat and will eat all your sand critters (other good animals that keep your sand bed live).

Sorry, that was supposed to be a quote in my last post/

Chris
 
I stir up my sand once every two weeks, with the end of my algae scraper. It seems to keep the build up away from the tank
 
There's nothing inherently wrong with the Via Aqua skimmer, but in this case the presence of the matting cyanobacteria and other algae suggests that it's likely inadequate for the tank -- there are too many nutrients, and it's the skimmer's job to remove them.
 
To answer your mandarin Q, yes mandarins of the same sex would fight, and I wouldn't have 2 in a 55.
I would't add any more fish to that at all, I don't know what kind of tang you have, but your bioload may be max.
I'd go w/ conch, and maybe a stronger skimmer.
 
<a href=showthread.php?s=&postid=7294489#post7294489 target=_blank>Originally posted</a> by rmarc005
Thanks everyone!

I have a 55 gallon. The algae sits on the surface of the sand-mostly green, some brownish. It starts to "layer". We have 4 fish-a Tang, Maroon Clown, Fire Goby? and a Mandarin. We have various Hermits one large snail (don't know what kind) and lots of tiny little snails. Three anemones (2 clown and a green) and a Green Sea Star. The filtration system is a Via Aqua Multi-skimmer and two pumps to push the water around the tank. I think that answers all your questions. A Cucumber sounds fun, but I thought they could release neuro-toxins if upset?

Gina

I agree don't add another mandarin. These are hard to keep alive unless it is eating regular food.

Do you have good test kits, what are your nitrate and phosphate levels? Are you using RO/DI water? What kind of lights and how long are they on? It is okay to vaccuum any mats of algae off of the sand bed during weekly water changes which is recommended esp if you have algae problems. This is a way to export nutrients. If the tank was moved recently this also can result in algae growth which should reduce over time if you feed minimally.

Good luck.
 
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