best discus tank water hardness

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Playful
Posts: 14
Joined: Thu Oct 10, 2024 12:42 am

Re: best discus tank water hardness

Post by Playful »

joshito wrote: ↑Sun Aug 31, 2025 10:19 pm Yo, my LFS said hardness don't matter if pH is low. That legit? Got a 40-gallon with 4 juvies, sponge filter, and they're growing slow.
Nope, hardness affects osmoregulation. Juvies need soft water (GH 1-4) to grow right. Upgrade that tank size too—40's tight for 4.
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Cloudy
Posts: 14
Joined: Fri Aug 02, 2024 6:21 am

Re: best discus tank water hardness

Post by Cloudy »

Beef heart's messy but worth it. I rinse my filter media monthly in tank water. Also, angelic, test your tap's TDS—might explain the dull colors.
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talon
Posts: 20
Joined: Thu Oct 10, 2024 2:05 pm

Re: best discus tank water hardness

Post by talon »

Wild Discus? Different ballgame. Tank-raised can adapt, but why risk it? Soft water's cheap with peat or almond leaves.
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