Cichlid Fish Forum banner
1 - 8 of 8 Posts

·
Registered
Joined
·
5 Posts
Discussion Starter · #1 ·
I have a 4x2x2 with 180L sump that I want to use as a mbuna tank. I assume I can fill the sump with suitable media and use it instead of an external filter?

In Sheffield our water is very soft with a ph of 7.6, what do I need to do to make it suitable for mbuna? Finally are mbuna a good choice for a first cichlid tank?
 

·
Super Moderator
Joined
·
40,487 Posts
Mbuna like yellow labs are a good choice for a first cichlid tank. pH of 7.6 is OK...what is your KH?
 

·
Registered
Joined
·
5 Posts
Discussion Starter · #3 ·
Not sure I'll have to get a test kit, only got kits for marine. Can I use the Eheim kh buffer if it's low?
 

·
Super Moderator
Joined
·
40,487 Posts
No need, for KH use baking soda. For GH use Epsom salts. But pH of 7.6 is fine so if it is stable I would not do additives.
 

·
Registered
Joined
·
5 Posts
Discussion Starter · #5 ·
I've been keeping tropical and then marine fish for a few years and the pH has never really changed from 7.6, if it does it's by an amount that can be seen as test error (never been above 7.7 or below 7.4 in what must be 150 tests)
 

·
Registered
Joined
·
5 Posts
Discussion Starter · #6 ·
No need to use Limestone as rock work or crushed coral as substrate then? I've been keeping the marine tank at 9.2 kH as it helps with algae control and coral growth.
 

·
Super Moderator
Joined
·
40,487 Posts
I have not found it to be effective in raising pH or KH but it is not harmful.
 

·
Premium Member
Joined
·
5,606 Posts
The pH has to be low for calcium to dissolve into water. By the time the limestone or crushed coral contributes calcium, the pH would already be affecting the fish. Established rock has a biofilm that makes even that ineffective by sealing off the rock surface. If you like the look, it will do no harm.
 
1 - 8 of 8 Posts
Top