The Planted Tank Forum

The Planted Tank Forum (
-   Shrimp & Other Invertebrates (
-   -   Akadama, no thanks (

mordalphus 11-29-2012 08:44 PM

Akadama, no thanks
I have had problems with my oldest Akadama tank with pH creeping up. I transferred the shrimp out of it 2 mmonths ago, but haven't broke down the tank yet because it was fullof nice moss .

Well last night I tested the pH, and this is without any additives or anything for the last 2 months.

It was 8.6

Well, sorry even my Amazonia tank from 3 years ago still has a ph of 6.8

I was just amazed how fast it went down hill with no changes in water or maintenance

Betta Maniac 11-29-2012 08:53 PM


acitydweller 11-29-2012 09:02 PM

Hi Morph,

Out of curiosity, whats the PH/gh/kh of your tap to understand how much buffering was enacted by the Akadama

mordalphus 11-29-2012 09:03 PM

Ph of my tap is between 6 an 7 and kh is 0, gh is 0 tds is ~20

mordalphus 11-29-2012 09:12 PM

Btw, I do remineralize per my standard, which is to 5 gh. For the longest time the Akadama ducked gh right out of the water, and after about 2 months that effect was no longer noticeable. I'm guessing that the Akadama stores minerals but then rapidly releases them.

All I know is ill never use it again and never suggest it to anyone.

I might try to get some cardinals to live in it though instead of breaking it down tonight.

acitydweller 11-29-2012 09:17 PM

it seems that not only is the old akadama not buffering, its actually charged to adversely raise the parameters beyond tap... coming from 6 and 7 up to 8 is just inconcievable.


Green_Flash 11-29-2012 09:52 PM

well, it is designed as a terrestrial substrate for bonsai, was never a believer myself.

now I would very much like to try something like BW soil.

Hmoobthor 11-29-2012 09:58 PM

wow..that a high ph

dhavoc 11-30-2012 04:24 AM

never had any success with it either, nothing i kept in it did well, and buffering varies greatly from bag to bag. i am going to use it for my hydroponic experiment (trying to grow plants in my koi pond filter outflow, where it doesnt matter much what it does as long as it holds together).

mordalphus 11-30-2012 06:25 AM

Yeah, I am going to transfer over a few cardinal shrimp to see if they do good in it, now that it's at 8+ pH, haha. I put a heater in last night and I"ve got about 100 cardinals to play with.

idex 11-30-2012 06:39 AM

How old was the akadama?

mordalphus 11-30-2012 06:44 AM

Less than a year, and I'm having pH woes in my planted 50 gallon with akadama as well.

I think it's 10 months old. My worries are, I have 3 other tanks I set up a few months ago, and now I have to tear them all down and redo them with a proper soil. Not looking forward to that.

hedge_fund 11-30-2012 01:32 PM

Yup, I just set up a new ADA Amazonia tank because my Akadama PH started to rise.

somewhatshocked 11-30-2012 01:51 PM

Since it's just clay mined from a general region, Akadama seems extremely (emphasis on the extremely) hit or miss. I've got a tank that's been buffering for about 23 months without issue and one that stopped buffering after less than two months. Same water: RO water with GH5.

I'd definitely never use it for anything other than aesthetic purposes. Stories like Liam's illustrate why it's a huge risk to take.

plamski 11-30-2012 02:49 PM

Liam check your PH meter.I almost kill all my shrimps because of failure PH meter.
My Akadama is 6-8 months old and it is buffering to 7ph. I’m adding tennis bal size peat moss per tank and it keep PH 5.6-5.8 for 50-60 days.
When I started the tank substrate discharge GH just a little bit. I have 2 tanks with it one CRS and one CBS
There are 20-50 babies in each. Will see how they will do in future.

All times are GMT. The time now is 12:20 PM.

Powered by vBulletin®
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.