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Discussion Starter · #1 ·
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
 

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Hi Morph,

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

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Discussion Starter · #5 ·
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.
 

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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.

:(
 

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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.
 

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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).
 

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Discussion Starter · #10 ·
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.
 

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Discussion Starter · #12 ·
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.
 

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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.
 

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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.
 

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that is so weird, mine are close to 6. i have to add crushed coral to one of them for my neos.

i did some water changes with tap and it raised the ph tho, i wonder what is in tap that does that.

when i wasnt doing any water changes and only di water top offs the ph was 5.6 for 6 months.

Liam! i set up my shrimp tanks following the instructions on your website! that is why i bought akadama! lol!! :D
 

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I have to agree with Liam. I experienced the same problem. Random shrimp loss with bad molt. My 2 years old Amazonia tank are much more stable. Now I will have to tear down 6 Akadama tanks that I just set up about 6 months ago :(. I'll redo them with New Amazonia. No more Akadama ;/
 

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I recommend using undergravel filter with New Amazonia especially when you have trouble with lowering Ph. You can either connect it to the intake of your canister or just use an air pump.
 
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