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discus breeding pair tank size
Posted: Fri Jul 04, 2025 2:30 am
by Marksfish
I'm setting up a tank for a breeding pair and wanna know if a 30-gallon is enough. They're about 5 inches each, and I've got a sponge filter, sand substrate, and some driftwood. Water's at 84°F, pH 6.5. Should I go bigger or is this fine?
Re: discus breeding pair tank size
Posted: Fri Jul 04, 2025 2:53 am
by Playful
A 30-gallon might cut it, but I'd recommend at least 40 gallons. Breeding pairs need space to establish territory, and cramped conditions can stress them out. I've had success with a 45-gallon, bare bottom for easy cleaning, and a canister filter. Keep up with daily water changes, around 20%, to maintain water quality.
Re: discus breeding pair tank size
Posted: Fri Jul 04, 2025 3:22 am
by Mixes
Playful wrote: ↑Fri Jul 04, 2025 2:53 am
A 30-gallon might cut it, but I'd recommend at least 40 gallons. Breeding pairs need space to establish territory, and cramped conditions can stress them out. I've had success with a 45-gallon, bare bottom for easy cleaning, and a canister filter. Keep up with daily water changes, around 20%, to maintain water quality.
I agree. A larger tank gives them room to spawn without feeling crowded. My pair did well in a 40-gallon with a few Java ferns and a sponge filter. Water changes are key, though.
Re: discus breeding pair tank size
Posted: Fri Jul 04, 2025 3:27 am
by Silvan
Yo, 30's kinda sketchy for breeding. They're gonna need more space to do their thing. I'd bump it up to 40 or 50 gallons, throw in some plants, and keep the water pristine. Mine chilled out way more after I upgraded.
Re: discus breeding pair tank size
Posted: Fri Jul 04, 2025 4:00 am
by pioneer
I used a 30-gallon for my first pair, but they never spawned. Switched to a 55-gallon, and now they're laying eggs every few weeks. Tank size definitely matters.
Re: discus breeding pair tank size
Posted: Fri Jul 04, 2025 5:29 am
by Marksfish
Thanks for the advice, everyone. I'll look into a 40-gallon setup. Any tips on tankmates or should I keep it species-only?
Re: discus breeding pair tank size
Posted: Fri Jul 04, 2025 7:26 am
by Lyn
Species-only is safest. Other fish can mess with the eggs or stress the pair. I've seen tetras nip at fry, so it's better to play it safe.
Re: discus breeding pair tank size
Posted: Fri Jul 04, 2025 8:18 am
by murse
I'd stick with just the pair. Less hassle, fewer variables to worry about. Keep the water clean, and they'll do their thing.
Re: discus breeding pair tank size
Posted: Fri Jul 04, 2025 9:33 am
by Playful
Lyn wrote: ↑Fri Jul 04, 2025 7:26 am
Species-only is safest. Other fish can mess with the eggs or stress the pair. I've seen tetras nip at fry, so it's better to play it safe.
Exactly. Even peaceful tankmates can become a problem during breeding. Focus on water quality and stability, and you'll have better success.