The Planted Tank Forum

The Planted Tank Forum (
-   Shrimp & Other Invertebrates (
-   -   My DIY peat filter (

GeToChKn 05-07-2012 08:43 PM

My DIY peat filter
Working off what Randyl had posted and other posts on the internet, I needed a cheap way to lower my pH until I can figure out a RO system and not be lugging jugs of water up 3 flights of stairs all the time. My tap water has jumped up from 7.2 to 8.2 in the past few months and it's not making the neo's or the tigers happy. I'd also like to be able to use this water as a test for some low grade crystals and see if I can get away from using RO for them.

I took a 4L (1gallon) water jug, cut off the bottom and drilled a small hole in the bottom. This fits into a 5gal jug like a funnel. I stuffed a bunch of floss in the bottom, really tight, then a piece of sponge, some more floss, and I have a bunch of carbon/phosphate/ammonia pads so I cut up some of them and put them in there. Probably not needed but I have them, bought a bunch as a noob a while ago at a midnight madness sale at Big Al's, so I have them, might as well use them, then more floss and some peat in pantyhose. I then put my shower facet on a slow drip right on the top of the peat. It takes about an hour to 1.5hrs depending on if people in the house flush or are doing laundry and I have 5gal of water that was 8.2pH, 230tds, 8gh down 5.8pH, 105tds, 4 gh.

Here's a pic of my ghetto funnel system.

and a jug of water just done, crystal clear. It may have a tiny, tiny, brown tinge but purigen in my tanks will filter that out. Already been swapping out water in my tiger tank to get the pH down from 8.0 to 7.5 and will do some more over the week to get it to around 7. If I need, I can mix my peat water with tap water and age it to get the pH where I want it anywhere from 5.8 that it's at to 6.5, 7, whatever value I want.

Bananariot 05-07-2012 08:49 PM

Holy smokes, that's like the ideal water conditions! Awesome. Though why is your bathtub all wrapped up like that?

GeToChKn 05-07-2012 08:50 PM


Originally Posted by Bananariot (Post 1851873)
Holy smokes, that's like the ideal water conditions! Awesome. Though why is your bathtub all wrapped up like that?

it's a clawfoot but to use a shower, I need curtains 360 around to keep water from the floor.

GeToChKn 05-07-2012 09:11 PM

2nd batch is down to 5.3pH.

MarkPeggie 05-07-2012 09:51 PM

Hello ,Tonight i was trying something similar ,I have a 60 liter CRS tank with 20 odd higher grade CRS my problem is my ph tends to rise over time to around 7.5 .

I do use RO water and peat to bring it back down to 6.6 but it never lasts more than a few days and i get a rebound ,its a very slow rebound so its no danger to the shrimp.

What i was looking for a way to constantly lower the ph to a certain level and keep it there idea is to use a drip system of peat water to lower the ph ...this would be on a timer . the same way ferts are dosed mechanically .

Ive built the device and tested it and it works now i just have to figure out dosing rates and timing .

Typically i will see a swing of 0.3 in a day so i wont have to dose much to bring it back down.

I am also testing to see if there is any ph swing in the peat water itself from when its first made to a few days later .

I can post my results and show you how i did it with pics tomorrow if your interested ?


GeToChKn 05-07-2012 09:52 PM

Sure, lets see what you did. I will test tomorrow and see how much the pH creep is on it.

GeToChKn 05-07-2012 10:13 PM

Markpeggie, your kH may also be rather high and that is going to cause the pH to creep back up and the peat isn't filtering enough out. I just tested, my tap is 4kH, my peat water was 0kH, so I assume mine won't drift much upwards.

discus fever 05-08-2012 01:06 AM

A faster way to do this is what some people call a "peat bomb" . Take a section of 4" pvc with screw on caps and plumb a power head to push water through the pipe . It can be used in a holding tank or plumbed right into a supply line to your holding tank without the pump. A few discus keepers used to do this a few years ago. The screw on caps allow you to easily change out the peat.

HiepSTA 05-08-2012 02:00 AM

where do you get peat from?

GeToChKn 05-08-2012 02:04 AM


Originally Posted by HiepSTA (Post 1852323)
where do you get peat from?

Got Spagnum Peat from the Hardware store. About 5$ for a bag the size of an insulation roll or a rolled up sleeping bag.

GeToChKn 05-08-2012 02:15 AM

So took me about 6 hours to make 20gals, about the same as a 60gpd ro unit would. Seems after about 20gals the floss and sponges need cleaning, and the peat is starting to wear out a bit as the pH went up about 0.2 in the final batch. Not bad, used about 30cents worth if peat.

GeToChKn 05-08-2012 03:07 PM

Well almost 24hours later after letting a jug degas any CO2 in the water, the pH crept to 6.1 from 5.8. Not bad and still very usable. I'll let it sit another day and see if it keeps creeping.

acitydweller 05-08-2012 03:26 PM

GeToChKn, nice work here also, very little run off waste unlike RO where it just runs down the drain.

GeToChKn 05-08-2012 03:43 PM


Originally Posted by acitydweller (Post 1852943)
GeToChKn, nice work here also, very little run off waste unlike RO where it just runs down the drain.

Ya, no run off. I want to measure for a few days, see if I get any more of a pH rise then going to setup a tank and test it with some low crystal culls and see what happens. lol. So far mixing it in my too high pH yellow/tiger tank, they seem to be liking it. Seeing saddles, seeing the tigers all dancing around last night after doing a 25% WC to bring the pH down.

diwu13 05-08-2012 04:56 PM

Do you pay for your water or is it "free"?

All times are GMT. The time now is 11:24 PM.

Powered by vBulletin®
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.