discus tank hang-on filter choice

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Roadman
Posts: 8
Joined: Thu Oct 10, 2024 6:24 pm

discus tank hang-on filter choice

Post by Roadman »

Need a solid hang-on filter for my 55-gallon Discus tank. Currently running a cheapo one but it's not cutting it. What's the best option for these sensitive fish? Tank's got sand substrate, driftwood, and a few live plants. Water's at 84°F, pH 6.5, and I do 30% water changes twice a week. Fish are about 4 inches, been with me for 6 months.
Olive
Posts: 15
Joined: Wed Jun 07, 2023 9:12 pm

Re: discus tank hang-on filter choice

Post by Olive »

For Discus, you want gentle flow but strong filtration. The Seachem Tidal series is great, especially the Tidal 55. It's got a huge media basket, adjustable flow, and self-primes. I've used it in my 75-gallon with Discus for a year, zero issues. Keep up with those water changes though, they're key.
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abbeytone
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Joined: Wed Oct 19, 2022 12:07 am

Re: discus tank hang-on filter choice

Post by abbeytone »

I've got a Fluval C4 in my 40-gallon. It's quiet and does the job, but I'm not sure if it's strong enough for a 55. My Discus seem happy, but they're smaller, around 3 inches. Maybe someone else can chime in?
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Rider
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Joined: Thu Sep 14, 2023 4:25 am

Re: discus tank hang-on filter choice

Post by Rider »

Olive wrote: Tue Jul 08, 2025 11:33 am For Discus, you want gentle flow but strong filtration. The Seachem Tidal series is great, especially the Tidal 55. It's got a huge media basket, adjustable flow, and self-primes. I've used it in my 75-gallon with Discus for a year, zero issues. Keep up with those water changes though, they're key.
Yep, the Tidal's a beast. I run the Tidal 75 in my 60-gallon, and it's perfect. Adjustable flow is clutch for Discus, they hate strong currents. Also, the surface skimmer keeps the water crystal clear.
pacer
Posts: 11
Joined: Sun Aug 04, 2024 8:07 pm

Re: discus tank hang-on filter choice

Post by pacer »

I've been using an AquaClear 70 for my 55-gallon Discus tank. It's reliable, but the flow's a bit strong even on the lowest setting. I had to baffle it with a sponge. Works fine now, but if I had to do it over, I'd go with the Tidal like Olive suggested.
Jazzie
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Joined: Mon Oct 31, 2022 11:13 pm

Re: discus tank hang-on filter choice

Post by Jazzie »

My uncle swears by the Marineland Penguin. He's got a 50-gallon with Discus and says it's quiet and easy to clean. I don't have personal experience though, just passing it along.
Roadman
Posts: 8
Joined: Thu Oct 10, 2024 6:24 pm

Re: discus tank hang-on filter choice

Post by Roadman »

Thanks for the recs, everyone. Gonna check out the Tidal 55. Sounds like it's the move. Appreciate the help!
Olive
Posts: 15
Joined: Wed Jun 07, 2023 9:12 pm

Re: discus tank hang-on filter choice

Post by Olive »

Roadman wrote: Tue Jul 08, 2025 4:50 pm Thanks for the recs, everyone. Gonna check out the Tidal 55. Sounds like it's the move. Appreciate the help!
No problem. Just a heads up, make sure to rinse the media in tank water during water changes. Keeps the biofilter intact. Also, toss in some Purigen if you want extra polish.
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Rider
Posts: 13
Joined: Thu Sep 14, 2023 4:25 am

Re: discus tank hang-on filter choice

Post by Rider »

Purigen's a game-changer. I run it in my Tidal, and my water's never been clearer. Just remember to recharge it with bleach and Prime every few months.
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abbeytone
Posts: 42
Joined: Wed Oct 19, 2022 12:07 am

Re: discus tank hang-on filter choice

Post by abbeytone »

I've never tried Purigen. Might have to grab some. Does it mess with the pH at all?
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