Small Filters For A 6Gallon?

[Ryefish]

I want to change from an undergravel to an internal filter but need to find one small enough that will fit in my biorb. i know someone on here is selling a Elite Mini filter, but ive read mixed reviews that they arent good at cleaning a tank over 3gallons and that the outflow is too powerful for most fish.

I am stuck in a predicament. I know nothing about filters, and after a failed google search i am still stuck on what will be small enough to fit in my tank but big enough to filter properly the 6 gallons of water in there, without being overly powerful.

Any suggestions / recommendations will be appreciated.

Thanks

 

[sharpshark]

How about one of these? Cheap and come in a few different sizes, I have one for a small segregation tank, very simple to use and maintain and the flow can be directed for the minimum disruption for your tank.
Stingray Filter

 

[Peggers]

jennybugs on here converted her biorbs to remove the standard filter, may be worth giving her a pm to ask what she used.

 

[OldMan47]

I would avoid the stingray that Sharp shark suggested. I have no personal experience with them but have seen enough reviews by others to avoid them. Another option, often overlooked in our modern high tech world, is the simple box filter / corner filter. Almost any of them can carry the entire bioload of a 6 gallon tank and are easy as can be to maintain. I use them on many of my colony breeder tanks because they will not eat fry and can do the job nicely for a small breeding population in a "species only" tank.

 

[loraxchick]

make you own sponge filter. it is so very simple. ive incuded instructions. ive just copy/pasted from an old PM.

ive just copied/pasted from an old PM. ignore any info that does not pertain to you/your tank. the build will be the same tho.
ANY questions/clarifications feel free to ask-im a HUGE advocate for these filters for so many reasons.

here's how to make one. it is reallllly simple.

list of things you will need:
- an old fish food tub or any other platic container with a lid depending on the size of the tank to house it (like an old peanutbutter jar (plastic of course), big yogurt container, sour cream container, even an old well rinsed out pill/perscription bottle etc.,).
-something to poke holes in the plastic- a nail and hammer or a drill with a small. sized bit
-gravel or some other material to weight it down
-filter media (sponges work best)
-air pump
-airline tubing


now to build it:
-take the clean container and poke some holes in the bottom. like 8 or so.
-poke a hole in the lid of the container that will accommodate the airtube and be just a BIT wider than the tubing(so the air can get out as it bubbles)
-take an amount of gravel and put it in the bottom (a small handful will be enough)
-put the airline tubing thru the hole in the lid and then run it in the container right down into the gravel
-pack the filter material nice and tight around the airline tubing. you can cut sponges to fit. just make sure its packed well. if not, the airbubbles will have lots of "options" to escape. the idea is to get it so that there is good suction thru the filter as the bubbles rise. if there is lots of airspace in there, the bubbles take the path of least resistance and suction will not be as good thru the media as it should be, and the filter will not work as well.
- put the lid on the container that now is weighted with gravel and packed with media.
-turn on the airpump and viola- nearly instant and cheap filter!!!

some troubleshooting advice:
-if it seems to float, add more gravel to weight it down
-test your water daily and do appropriate waterchanges until it cycles.
-if using mature media, ive found that they usually cycle within a week or so (or sometimes instantly if the bio load is low).
- if you dont notice reduction of ammonia within a week or two, try packing with more media...or if it was REALLY jam packed, maybe take a bit out.


these filters require VERY little maintenance. they are NOT mechanical filters (do not remove the solid waste in the tank) so they dont get all gunked up with waste. i have not touched my filter media in months!!!! although this means that with water changes, you will have to syphon out the solid waste- these filters do not do that for you. they just take care of the chemical filtration (turning ammonia into nitrites into nitrates). they do circulate water quite well tho.

good luck and feel FREE to ask if you need any further instruction or clarification. they truley are very very simple to make. once you make one, you might not buy a filter ever again. i know i wont smile.gif its a little extra work to clean the solid waste up, but if you regularly do partial water changes anyway, it is not a big deal as you should be syphoning up the poo anyway.

good luck and have fun making your filter!
cheers