From Malawi to South American - Advice wanted - The Planted Tank Forum
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post #1 of 3 (permalink) Old 05-12-2019, 11:57 AM Thread Starter
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Question From Malawi to South American - Advice wanted

Hi there

I am converting my 125G Malawi tank to a South America blackwater-inspired tank (so lots of wood, rocks, and minimal plants). My tap water in Houston has a pH of 7.5, GH of 160ppm and KH of 107ppm). For the Malawi cichlids I didn't have to do much. What additives do you use in your South American biotopes? I know the wood will bring down the pH some.

I've already decided on the stocklist (all tank-raised):

30 Hemigrammus bleheri
20 Hyphessobrycon amandae
8 Corydoras Sterbai
1 Apistogramma Agassizi "Fire Red" (not interested in breeding and had enough aggression with the Malawi cichlids)
(possibly Otocinclus, nerites, amano shrimp down the line, depending on the algae situation)

Last edited by MR10C; 05-12-2019 at 04:38 PM. Reason: added ppm measurements instead of API
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post #2 of 3 (permalink) Old 05-12-2019, 03:15 PM
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Might think about spending$100 and gets small ro unit. I have hard water like you here in Indy. With one of those you can simply mix your water with the ro water and get things down where you want it without doing the buffer dance ;-). Something like ro buddy will do just fine.

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post #3 of 3 (permalink) Old 05-12-2019, 04:42 PM Thread Starter
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Thanks, I have considered it but the space is very limited and can't accommodate an RO system.
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