discus tank canister filter setup

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Haven
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Joined: Thu Oct 10, 2024 6:18 pm

discus tank canister filter setup

Post by Haven »

Setting up a new canister filter for my 75 gallon Discus tank. Got an FX6 but worried about flow being too strong. Anyone run this setup before? Tank has sand substrate, driftwood, and a few Amazon swords. Water stays around 84F, pH 6.8. Fish are juveniles, about 3 inches.
Banger
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Joined: Fri Oct 14, 2022 3:08 pm

Re: discus tank canister filter setup

Post by Banger »

FX6 is solid for that size tank. I've got one on my 90 gallon with similar setup. Just point the output towards the glass or use a spray bar to diffuse flow. My Discus don't mind it once they adjust. How often you doing water changes?
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micsim
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Joined: Sat Feb 12, 2022 3:50 pm

Re: discus tank canister filter setup

Post by micsim »

Yep, spray bar cuts the flow nice. I run mine with sponge pre-filter too, keeps the big stuff outta the canister. What's your nitrate level? Juves need clean water, I do 50% changes twice a week.
Haven
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Joined: Thu Oct 10, 2024 6:18 pm

Re: discus tank canister filter setup

Post by Haven »

Banger wrote: Sat Jun 14, 2025 2:26 pm FX6 is solid for that size tank. I've got one on my 90 gallon with similar setup. Just point the output towards the glass or use a spray bar to diffuse flow. My Discus don't mind it once they adjust. How often you doing water changes?
Thanks, gonna try the spray bar. I'm doing 30% changes every 3 days, nitrates hover around 10ppm. They're eating beef heart mix twice daily.
Banger
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Joined: Fri Oct 14, 2022 3:08 pm

Re: discus tank canister filter setup

Post by Banger »

That's a good schedule. Beef heart's great for growth. Just watch the flow after feeding, don't wanna blast food everywhere. I keep my spray bar about 2 inches below water surface, gives decent surface agitation without too much current.
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micsim
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Re: discus tank canister filter setup

Post by micsim »

Mine's same depth, works a treat. You got a backup sponge filter in there? Power outages happen, and Discus ain't cheap. I run a cheap air pump with sponge as insurance.
Banger
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Re: discus tank canister filter setup

Post by Banger »

micsim wrote: Sat Jun 14, 2025 5:15 pm Mine's same depth, works a treat. You got a backup sponge filter in there? Power outages happen, and Discus ain't cheap. I run a cheap air pump with sponge as insurance.
Smart move. I've got a battery backup for the canister but a sponge's good redundancy. What heater you running? Gotta keep that temp steady.
Haven
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Joined: Thu Oct 10, 2024 6:18 pm

Re: discus tank canister filter setup

Post by Haven »

Using two 200W Eheim Jagers, one on each side. They're dialed in tight, never seen more than 0.5F fluctuation. Sponge backup's a good call though, gonna grab one this weekend.
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