Pre-filters are clutch. They also reduce intake suction, which can stress fish. What's your stocking density? Overcrowding amplifies flow issues.
Discus tank flow for happy fish
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JUSTICE  - Posts: 14
 - Joined: Thu Aug 03, 2023 8:10 pm
 
Re: Discus tank flow for happy fish
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masterd  - Posts: 18
 - Joined: Sun May 05, 2024 1:49 am
 
Re: Discus tank flow for happy fish
My Discus tank's a 55g with a cheapo HOB. Flow's low, but they still hide sometimes. Maybe my angelfish are bullying them? Got Java ferns and a basic LED light. Water's soft, pH 6.8. Should I upgrade the filter?
			
			
									
						
										
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Pathmaster  - Posts: 18
 - Joined: Tue Apr 05, 2022 4:55 pm
 
Re: Discus tank flow for happy fish
Angelfish can be jerks to Discus. Try rearranging the decor to break territories. And yeah, a canister or dual sponge filters would help. What's your feeding routine?
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Hued  - Posts: 21
 - Joined: Thu Aug 03, 2023 8:36 am
 
Re: Discus tank flow for happy fish
Ditch the HOB, fam. Canisters are way better for Discus. I run two sponges and a small canister in my 60g. Flow's gentle but steady. Also, throw in some catappa leaves—they're like fish Xanax.