• You are viewing the forum as a Guest, please login (you can use your Facebook, Twitter, Google or Microsoft account to login) or register using this link: Log in or Sign Up
  • You can now follow UKAPS on Instagram.

Tropica soil with very hard tap water

demetrisag

Member
Joined
20 May 2021
Messages
47
Location
Cyprus
Hi all, I wanted to share a concern with you. I just started my aquarium, just hardscape for now until the nitrogen cycle complete. What I noticed is the substrate took my kh nearly to 0dKH! My tap water has 17dKh! I am kinda worried now, when I am doing 50% water changes won't the massive swing on KH affect my livestock? Especially if I do that everyweek?

Also when the buffering stops what can I do to keep plants and livestock happy?

Thanks!
 

Tom Delattre

Member
Joined
6 Oct 2020
Messages
57
Location
France, Avignon
I've been asking that around, including to George, Jurijs and Dennis Wong. Everybody told me it was nothing to worry about. I still have trouble wrapping my head around it.
Same question if you remineralize water with gh+kh : obviously the kh you add is "eaten away" by the substrate.

Envoyé de mon KB2003 en utilisant Tapatalk
 

demetrisag

Member
Thread starter
Joined
20 May 2021
Messages
47
Location
Cyprus
I could I suppose use osmosis water and remineralize with just GH (seachem equilibrium) and let the kh be 0. But I want to avoid osmosis water. I want to use tap water, but the conditions the substrate creates don't seem to be compatible with my tap water
 

dw1305

Expert
UKAPS Team
Joined
7 Apr 2008
Messages
12,501
Location
nr Bath
Hi all,
. I want to use tap water, but the conditions the substrate creates don't seem to be compatible with my tap water
All these active substrates work via <"ion exchange">, which means that the ions (Ca++. Mg++, HCO3-) your hard water will rapidly fill up the exchange sites and at that point the substrate will stop reducing the dGH and dKH.
just hardscape for now until the nitrogen cycle complete
Just carry on changing water and your substrate will reach equilibrium with tap water a lot more quickly. You never need to use ammonia to "cycle" a planted tank, you just need to plant it and then wait until the plants are grown in before adding any livestock.

Most of the advice you get about both <"pH stability"> and <"cycling"> is wrong. Have a look at <"Dr Timothy Hovanec's .............">.

cheers Darrel
 

demetrisag

Member
Thread starter
Joined
20 May 2021
Messages
47
Location
Cyprus
Hi all,

All these active substrates work via <"ion exchange">, which means that the ions (Ca++. Mg++, HCO3-) your hard water will rapidly fill up the exchange sites and at that point the substrate will stop reducing the dGH and dKH.

Just carry on changing water and your substrate will reach equilibrium with tap water a lot more quickly. You never need to use ammonia to "cycle" a planted tank, you just need to plant it and then wait until the plants are grown in before adding any livestock.

Most of the advice you get about both <"pH stability"> and <"cycling"> is wrong. Have a look at <"Dr Timothy Hovanec's .............">.

cheers Darrel
I have been reading that soil will take a long time to stop buffering what if I dont want to do all the water changes until it's depleted, would this be harmfull to my plants and fishes to do water changes with such a big difference at KH?
 

dw1305

Expert
UKAPS Team
Joined
7 Apr 2008
Messages
12,501
Location
nr Bath
Hi all,
would this be harmfull to my plants and fishes to do water changes with such a big difference at KH?
The plants should be fine. It could be an issue with the fish if you <"kept Lake Tanganyika cichlids">, but not for nearly all other fish. It might also be an <"issue for snails">, but only in the short term until the substrate and water were at equilibrium (both <"fully saturated"> with Ca++ and HCO3- ions).

cheers Darrel
 

demetrisag

Member
Thread starter
Joined
20 May 2021
Messages
47
Location
Cyprus
Hi all,

The plants should be fine. It could be an issue with the fish if you <"kept Lake Tanganyika cichlids">, but not for nearly all other fish. It might also be an <"issue for snails">, but only in the short term until the substrate and water were at equilibrium (both <"fully saturated"> with Ca++ and HCO3- ions).

cheers Darrel
Thanks for the reply Daniel! I was thinking about tetras, zebras, otos and shrimps (and maybe guppies)
 

Nick potts

Member
Joined
25 Sep 2014
Messages
625
Location
Torbay
I have been reading that soil will take a long time to stop buffering what if I dont want to do all the water changes until it's depleted, would this be harmfull to my plants and fishes to do water changes with such a big difference at KH?
I don't think you will have any issues, the number of people using aqua soil and don't even bother checking KH.

If you really wanted to, you could make a very strong KH solution use that for water changes for a bit, it will soon deplete the buffering capacity.
 

demetrisag

Member
Thread starter
Joined
20 May 2021
Messages
47
Location
Cyprus
Haven't thought of that. Would that be wise you think? Also This is not gonna affect the fertilizing properties of the soil i guess?
 

Nick potts

Member
Joined
25 Sep 2014
Messages
625
Location
Torbay
Shouldn't affect the ferts in the soil, it would happen eventually anyway, you'd just be speeding up the process.
 

Sean Scapes

Member
Joined
23 May 2021
Messages
31
Location
Dudley West Midlands
I use tropica soil in my low tech tank. I have hard water and my current livestock aren't bothered by it.

I keep Otis, zebra danio, tetras with no issues. My amano shrimp are happy also. I wouldn't worry much about it honestly.
 
Similar threads

Similar threads

Top