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Lori4746
Joshua8425
I read. They say sand works as an abrasive. There is significant wear on the pump and the filter itself.
P.S. Although when I poured sand into the calcium reactor, I didn't really notice much wear. Maybe I should have left it there longer?
Julia
And what about the pump? The filter itself hardly wears out (if it's glass, not plastic). I had a homemade one for freshwater, and now I'm curious, has anyone tried it in the sea? For the filter, it doesn't really matter.
Jason9952
It turns out that in M.A. (marine aquarium) this is called "Fluidized Bed Filter." It's a very convenient thing. You can charge it with anything, from sand to zeolite and anti-phosphate. We should get our DIY enthusiasts interested in such toys. The design is really very simple.
Rachel
Hmm... I can't seem to find such a device for sale.
Alexander
Is it like this?
Amy1672
Well, something similar.
Joshua9340
if this is what I think it is, then Vitalik has been doing it for a long time and it is in Max's aquarium
Tricia7885
And didn't you find it? How about searching on the forum?
Travis572
What if we put something like this on the aquarium drain?
Wesley
There needs to be a strong current; otherwise, a boiling layer won't form.
Jessica6754
there is such a one
two diameters are possible: 120 and 150 mm
I have one like this with pellets installed on the drain (through a bypass), it boils...
Chelsea567
Pellets are somewhat different. The base of a sand filter is different (conical) and the water injection is designed differently; otherwise, the system won't start after the pump stops. I once made a homemade sand filter and struggled with the startup and the shape of the bottom, so I have some experience. Off-topic. I'm already eyeing the pellets...
Gregory
works with coal and pellets, but what's the sand for there????
Christopher3770
There is a biofiltration system called vortex sand filters (Fluidized Bed Filter or FBF). They have proven to be quite effective in freshwater aquariums. In general, they are somewhat similar to pellets, but incomparably cheaper. Here is what Miklukha writes about it on his website: Taken from here:
Matthew
What are they good for? From experience.
Jesse
I answered in the post above (edited). They work very well in freshwater (I tried). Now I'm curious to try them in the sea.
Courtney
I don't understand what you're talking about....
Marine aquariums don't need sand filters like a hare needs GPS.
Comparing pellets with sand is like comparing a cow to sausage.
They have different purposes: sand is a substrate for bacteria, pellets are food.
You should read up on the theory...
Allison
How is this nitrate removal filter?
Hannah
Which one?
Sheila1322
So the topic of the sand filter, and as I understand it, it is being discussed here.
Barbara
FBF and other methods for reducing ammonia and nitrite, resulting in nitrate. Pellets help reduce nitrate and phosphate, but for better removal, the reactor output should be directed to a skimmer that removes bacterial biomass.
Melissa
The skimmer is in great doubt... (most likely there won't be a place to put it). Although the option of a pellet + skimmer (if everything is combined in one external device) might be a solution. ........................... I didn't measure nitrates after the FBF at the time, but if the bacteria in the pellets consume nitrates, then why wouldn't they in the FBF?
Aaron6112
It's due to inexperience. In the case of pellets, just like with zeolite, anti-phosphate is contraindicated, but people are used to putting everything they can into their aquariums, and the more the better. Just like small children, and then they throw their hands up and look around with wide eyes.
Eric5208
Yes, the person actually had an antifos there, but I was actually writing about the principle of operation of pellets.
Rebecca
I didn't even doubt it...
Do you have experience using pellets?
I'm just referring to the topic of the sand-gravel filter and its principle of operation.
Brian6895
No, otherwise I wouldn't be asking questions, but answering them. I have experience using FBF in freshwater. I don't think it will be fundamentally different from M.A. (marine aquarium).
Joshua448
Did you really write this? If so, Iād better refrain from commenting...
Denise
I wrote as I think, because I don't have much experience in marine aquariums, but I would really like to hear your comments, as I come here not just to defend my (incorrect) understanding, but to learn. Therefore, if it's not too much trouble... If something seems unclear to me, I will ask again, and if I find something incorrect, I will try to discuss it.
David3217
The purpose of this device??????
Why do you need it?????
What will you do with nitrates, phosphates (the products of its operation)?
I'm just curious to understand if this is just to talk or to solve problems?
Nicholas
Well, knowledge is always interesting, but there is a task:
A 130-liter aquarium.
There is no place to install a sump. An external filter is not an option. There is very little space next to the aquarium. The aquarium is positioned high.
The task is to come up with a filtration system for such an aquarium, if it is even possible. Of course, the system must be very compact and preferably internal.
The bioload in the aquarium is average (soft and a few fish).
Since I successfully used FBF in freshwater, the thought arose whether it could be applied here as well (or something similar).
Charles4157
I think if there is space for the FBF, there will be space for the foam separator. Sand filters are used in aquariums where the task is to remove ammonium as quickly as possible, and then partially remove the derivative through water changes. In the case of an aquarium, such a system is suitable only for a fish aquarium.
Andrea
Well, if we take a compact one, it can be found, but I would also like to gain new knowledge.
William
I think it's a controversial statement... In my observations, both vodka and pellets remove little phosphates, while nitrates are easily removed. Anti-phosphate should definitely be added. It's possible that the pellets didn't work because the skimmer was dead, meaning biomass wasn't being removed from the system.
Angel628
It's due to inexperience.
David4968
Here they could share their experience with the use of pellets. Judging by what is written on RiffCentral, they can fully replace algae scrubbers. This means that (with an external skimmer) one can also do without a sump.
Hannah
If I had an orange, I would share it with you... It's a pity you don't have one.
Amber1273
I have it in the aquarium. Sand and small shells instead of a sponge. I took everything from the beach at Kazantip. There are a lot of snails in the sand. I changed it in the summer (after a year). I didn't throw it away or rinse it, I just took it to the dacha (the dacha is in Kazantip Bay) and unloaded it into the bay. There, I also collected "new filtering material."