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Red phantom tetra feeding

Thanks once again for all the suggestions, folks. I've gone for a shoal of 15 red phantom tetra, which seem to have settled in fine. They definitely seem to favour the lower half of the aquarium, so the suggestion from @Simon Cole to add another shoal that will tend to stay higher in the water...

One day I'll have a covered tank and keep hatchet fish for sure. Current thinking on this set-up is a shoal of 15-20 black phantom tetra and a group of 3-4 pearl gourami. And red cherry shrimp.

Been thinking about this, Simon. Do these two species really keep apart in the tank, above and below? I'm guessing the two shoals rarely sit one above the other like they're stacked on shelves. But if they generally mix freely with each other, that would give the aquarium a very different look...

Now that's a spectacular fish!

My water is VERY soft. Run it at 24° at the moment. But they do look absolutely superb. How big are they?

Odessa barbs look very interesting. Do you have pictures of yours, @Regent ?

Thanks for the compliment Simon, and thanks for all the suggestions! This is not getting any easier!

More great suggestions. I'll post up here once I've made a decision and a purchase. Thanks everybody!

I've got 2x24w fluorescents and a 150w metal halide. The fluorescents come on half an hour before the MH and turn off half an hour after it, so it's not quite such a shock. And I have amazon frogbit too (just ordered some phyllanthus fluitans from @EA James as well 👍🏻). But no Amano or other...

Thanks for that. I'll bear it in mind if things start chucking themselves out, onto the floor!

That's interesting - why would a light on stop then from jumping?

I've just got George Farmer's book and there's an inference he uses Amano shrimp in open-topped aquaria - I thought this was no-no too? Maybe I'm just misreading him?

Lemon tetra do look very nice indeed. Not so sure about hatchet fish - with an open top I think they might take a jump? Great looking though.

Great suggestions - some good ideas there, plenty to think about.

I'm after a shoal of small fish for my high aspect ratio tank - it's 100x45x55cms tall. As George farmer says in his new book: "Taller ranks suit taller-bodied fish and shallower tanks more streamline species". I've had harlequins before, and I'm tempted to have them again - right size, right...

What an interesting thread! I've been wondering whether my stocking level is ultra-low, and assumed it was, because so much discussion on the topic centres around 'how many fish?' and 'how big a shoal?' questions. Yet here we are with an apparent bias in favour of 'under'-stocking - not what I...

I've got a shoal of just ten harlequin rasboras in over 200 litres - suits me fine, for now at least. Plus six otos and a couple of dozen shrimp - that's it. Maybe less can be more?

Thanks Ed, that's great.

An aside - do you see the dark line on the anal fin of these harlequins? Is it faeces, or just a fin marking?

Oh George, I know, I know! Spending dosh on interesting stuff is all too easy! Agreed on the glass. When it comes to bridges and compacts I'm always amazed how much people fork out for cameras that simply can't let a lot of light in, but are lighter/smaller/prettier than the rest. But you...

Well... Here's a naff one using the built-in flash. Because the flash is being reflected off the scales staight back into the camera, all the colour's washed out. They don't look like this - honest! I'll try again this evening once the tank lights come on. While my beloved and ageing Fuji...

Quick update - the harlequins are now feeding voraciously, and coloration is incredible, with purples coming through strongly. Thanks again for excellent UKAPS guidance.

Temp Well guys, thanks again. I finally got down my LFS this morning, and got some freeze-dried bloodworm, some Tetramin flake and some brineshrimp to hatch. After a water-change and a feed of Tetramin and bloodworm, the harlequins have completely changed colour! From a healthy fuchsia-pink...

FWIW, here's a picture of one of my harlequins - but nothing beats the flash and sparkle of the real thing:

How big's your tank, Ollie?

Thanks for the quick (and reassuring) replies, Steve + George. I'm using Hikari Micro Wafers, which are not wafers at all, but really tiny pellets. I did see one or two fish bite at them and promptly spit them out this morning, so that's progress. And I did ask at the fish shop what they were...

Sorry for what might be a daft question, but should I turn off my filter at feeding times, to stop the feed getting blasted round the tank? I just got my first-ever fish (harlequins) two days ago, and it's not obvious that they're getting any food. I'm guessing it's because they're not used...

I knew I needed to get a range of foods, but didn't know what. I'll start collecting. At the moment I've got Hikari micro wafers - and that's it! People seem to rave about red astax crumb, so I might get some of that, but I'd like to support my LFS (even though it's a bit pants!), so I'll see...

Hi guys, great timing with this thread. I'm sitting here drip-acclimatising the first ten members of a harlequin shoal for my 200 litre tank, thinking "What the hell do I feed these things?" - and now I know! :lol:

Well that just goes to show how much I have to learn - I thought most tropical freshwater fish were wildcaught!

PFK is running a story about a sustainable fish project in Brazil, the Mamiraua Project, supplying fish to the UK later this year - hopefully, it says. Great, that'll be the last piece in the jigsaw letting me set up a planted tank with a clear conscience. But what fish will I be able to...