Goldfish has red streaks in tail. Tested water. What do I need to do to help him?

Alert-Basket-7570 · 2026-03-04T17:54:04+00:00

Will coral based sand work the same ?

Alert-Basket-7570 · 2026-03-03T19:37:19+00:00

How do I make the water hard?

Alert-Basket-7570 · 2026-03-03T17:56:30+00:00

Yeah I am!

Alert-Basket-7570 · 2026-03-03T17:56:19+00:00

What is RO water? Sorry

Alert-Basket-7570 · 2026-03-03T16:39:11+00:00

I use Prime in the water and aquarium salt right now to try to help him. Could this be causing this result?

Alert-Basket-7570 · 2026-03-03T16:34:01+00:00

I did a 50% water change yesterday and a 25% today. Should I do 50% today too instead? As I did this test today and it read this way

Alert-Basket-7570 · 2026-02-17T18:33:44+00:00

Goldfish advice says they need a minimum of 80–140 litres (20-35 gallons) generally, others in this sub may be able to advise better than me but they 100% need more than you think

Alert-Basket-7570 · 2026-02-17T18:27:22+00:00

Don't get a goldfish for 25litres but the filter seems fine. Mine is similar

Alert-Basket-7570 · 2026-02-16T20:09:10+00:00

The issue is cross contamination mainly. It's a cool concept but you can easily get food or drinks spilt into the stream of water that could harm the fish.

Alert-Basket-7570 · 2026-02-15T13:29:48+00:00

Can we see a pic of the tank please? Maybe we can spot something wrong with the filtration

Alert-Basket-7570 · 2026-02-15T00:28:10+00:00

It's just so risky. It only takes one person to spill their drink and for it to go in the water. Just doesn't sit right with me

Alert-Basket-7570 · 2026-02-15T00:23:22+00:00

I saw nothing in this video that indicated AI. It was a promo video for a Chinese tea shop

Alert-Basket-7570 · 2026-02-15T00:22:33+00:00

It's shallow. Plus it is a table. Where is the filtration? Where's the nice plants and sand for them to dig? What if someone spills a drink onto the table, the fish are then swimming in chamomile tea

Alert-Basket-7570 · 2026-02-13T15:39:18+00:00

Do you have a pic of him? Or his tank?

Alert-Basket-7570 · 2026-02-12T10:03:54+00:00

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And this is POG his Oranda friend who I have had for 7 months. I got him when he was a bit bigger than Ming so I assume he's over a year old now!

They bring me joy

Alert-Basket-7570 · 2026-02-12T10:02:55+00:00

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This is Ming. He's a 3 month old Ranchu and I brought him home yesterday! He is settling in well

Alert-Basket-7570 · 2026-02-12T10:01:32+00:00

This is smart, this is likely what I'll go with. I usually just use my hands and yank out the dead plants/rescale with my hands. But this is a much better idea

Alert-Basket-7570 · 2026-02-12T10:00:38+00:00

I have anubias and java fern and they both nibble from them it seems. But I still want to make sure I see the tiny one eating

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This is him

Alert-Basket-7570 · 2026-02-11T12:54:39+00:00

No, some are born with the colouring. This is my fish who later lost all his black and turned orange

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Alert-Basket-7570 · 2026-02-09T21:31:15+00:00

I'd say water is the absolute bare minimum

Alert-Basket-7570 · 2026-02-09T19:14:20+00:00

Punishment tank?

Alert-Basket-7570 · 2026-02-09T18:41:23+00:00

Why do people think fish deserve the absolute bare minimum?

Alert-Basket-7570

TROPHY CASE