silent hang on filter?

[sixthbrand]

Im using Dophine H100 for my 30cm. Working very well and silent!

[yappyz]

do the 'charcoal' really works?, they look totally like the charcoal my mother puts in my cabinet.



do pardon me as i am still a noob~

[seudzar]

That's activated carbon, it suppose to clean your water. It suppose to remove taint and other chemical from your tank. Under aquarium, activated carbon are known as chemical filtration media.

Those stones in the filter acts as bio media that are used to break down ammonia to nitrite/nitrate.

[sixthbrand]

Must remember to change charcoal periodically.. I dun dare to use it as I won't know when to get it replaced..

[seudzar]

the filter replacement pack are readily available in C328, polyart, seaview, Y618...etc

[HayBee]

Can also consider the ISTA "thin type" hang on filter... it has similiar design to the Gex slim filter, but the motor and impeller are outside of the tank (not inside), so less heat transfer into the water and no wire dangling into the water too.

Here is a link to the google images of the various models: http://www.google.com.sg/search?q=is...h=946#imgdii=_

I've been using the smallest 180 l/ph model for my 13 litre quarantine tank for the past few weeks. So far it runs quietly and works well.

Hi Urban Aquaria,

For a GEX Glassterior 300 (30 x 20 x 25cm) tank, I should be getting a higher capacity model of the ISTA HOF ?

I believe there is a 280l and 380l model - will 380l be overkill for my tank size ?

Is the flow adjustable ?

Thanks.

[Urban Aquaria]

For your tank, it works out to around 15 liters, so the smallest 180 l/ph model should still be sufficient... i actually already find it abit too strong for my 13 liter tank and had to adjust the flow lower to 70-80%.

The filter has a flow adjustment knob at the rear joint of the intake tube.

[HayBee]

For your tank, it works out to around 15 liters, so the smallest 180 l/ph model should still be sufficient... i actually already find it abit too strong for my 13 liter tank and had to adjust the flow lower to 70-80%.

The filter has a flow adjustment knob at the rear joint of the intake tube.

Thanks for the quick response.

But my worry is the 180l might not have enough room for filter medias ?

Are you using any on yours ?

I have Seachem Matrix in mind.

[Urban Aquaria]

Thanks for the quick response.

But my worry is the 180l might not have enough room for filter medias ?

Are you using any on yours ?

I have Seachem Matrix in mind.

The 180 l/ph version has a slim but tall shape, so its overall filtration volume is quite good, yet it doesn't look as bulky as other conventionally shaped hang-on back filters.

I originally used the original filter wool cartridge that came with the unit and then stuffed smaller bits of Seachem Matrix in between the gaps... but eventually i just removed the cartridge and filled up the whole filter compartment with Seachem Matrix, was able to stuff around 200ml of Matrix in there (just select and use the smaller pieces, they fit better and allow for more bio-media surface area too).

Btw, i put a pre-filter sponge on the intake tube so that its acts as the mechanical filter to trap dirt (i just take it out to rinse every 2 weeks or so), the Matrix in the filter acts as the biological media.

So far it has kept my 13 litre tank filtered well, no issues encountered yet.

[HayBee]

The 180 l/ph version has a slim but tall shape, so its overall filtration volume is quite good, yet it doesn't look as bulky as other conventionally shaped hang-on back filters.

I originally used the original filter wool cartridge that came with the unit and then stuffed smaller bits of Seachem Matrix in between the gaps... but eventually i just removed the cartridge and filled up the whole filter compartment with Seachem Matrix, was able to stuff around 200ml of Matrix in there (just select and use the smaller pieces, they fit better and allow for more bio-media surface area too).

Btw, i put a pre-filter sponge on the intake tube so that its acts as the mechanical filter to trap dirt (i just take it out to rinse every 2 weeks or so), the Matrix in the filter acts as the biological media.

So far it has kept my 13 litre tank filtered well, no issues encountered yet.

May I ask what kind of pre-filter sponge ?

So this sponge filter act as a replacement for the function of the original wool cartridge which you removed?

Thanks for the info so far. You have been very helpful for newbie like me

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[Urban Aquaria]

May I ask what kind of pre-filter sponge ?

The ISTA hang-on filter actually comes packaged with a pre-filter sponge.

Note that the holes in that sponge are still large enough for new-born 1-2mm size shrimplets to enter, so you might need to purchase or DIY one with denser sponge material of you are breeding shrimps in your tank.

So this sponge filter act as a replacement for the function of the original wool cartridge which you removed?

Yeah, without the filter wool cartridge, there is not much else to trap dirt (there is actually another sponge to separate the compartments inside the filter, but its only a small piece), so a pre-filter sponge will help do the job more effectively.

[Aventador]

Looks like the ISTA HOF is quite suitable for my nano tank. Just got a Dolphin 80 today, shall go back C328 to change tomorrow.

[HayBee]

The ISTA hang-on filter actually comes packaged with a pre-filter sponge.

Note that the holes in that sponge are still large enough for new-born 1-2mm size shrimplets to enter, so you might need to purchase or DIY one with denser sponge material of you are breeding shrimps in your tank.




Yeah, without the filter wool cartridge, there is not much else to trap dirt (there is actually another sponge to separate the compartments inside the filter, but its only a small piece), so a pre-filter sponge will help do the job more effectively.

Thanks for the helpful tips!

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[Aventador]

ISTA HOF is temporary out of stock at C328 and polyart. Save a trip for some who is going down there this weekend.

[TTerry]

Hi, sorry to dig up an old thread. I changed my betta tank and decided to replace my sponge filter with ista's slim HOF after reading this thread. I find it quite noisy as compare to my canister. Anyone mind to share his/ her experience?

[Urban Aquaria]

Canister filters will usually be quieter as they run separately from the tank, only liknked by silicon hoses
.. not mounted directly on it.

Hang on filters send vibrations from the motor onto the tank glass so that can create noise and rattling. If its noisy, check the parts of the hang-on filter. If its vibrating alot, might be some parts loose or not balanced. It's also possible one unit might be rattling, while another unit is okay. Have to check.

To minimize vibration transfer and noise, you could also try to stick foam bumpers (like those used to protect furniture edges) on the contact points between the hang on filter and tank glass. That can help too.

That being said, usually the smaller the hang on filter and lower the flow rate, the quieter it'll tend to run. I use the smallest Dophin H80 hang on filters for my holding tanks and they are very quiet, compared to the larger models.

[TTerry]

Canister filters will usually be quieter as they run separately from the tank, only liknked by silicon hoses
.. not mounted directly on it.

Hang on filters send vibrations from the motor onto the tank glass so that can create noise and rattling. If its noisy, check the parts of the hang-on filter. If its vibrating alot, might be some parts loose or not balanced. It's also possible one unit might be rattling, while another unit is okay. Have to check.

To minimize vibration transfer and noise, you could also try to stick foam bumpers (like those used to protect furniture edges) on the contact points between the hang on filter and tank glass. That can help too.

That being said, usually the smaller the hang on filter and lower the flow rate, the quieter it'll tend to run. I use the smallest Dophin H80 hang on filters for my holding tanks and they are very quiet, compared to the larger models.

Thanks a lot. Mine is the smallest model, ista 180. It seem to perform ok, besides the air noises and vibration. I checked the propeller, no loose part. I took away the top cover to reduce the echo of the noise. Hopefully the water wont split out.

[gimhchng]

And higher the "water fall", greater the noise. Increase the water level if necessary.

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[TTerry]

And higher the "water fall", greater the noise. Increase the water level if necessary.

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ok thanks lot