Your current Fish tank Setups!

It's very fine Unipac sand and there is 3-4cm of Tropica plant substrate underneath it.

I prefer sand and I am going to keep Corydoras, and they have to have sand for their barbels.

Also sand is as much a substrate as gravel is, so I don't know why you say "use a proper substrate".

I had white sand in my previous set up and it was fine, though you aren't restricted to 'just' sand if you wish to keep corys. The only issue I found with having sand was that you can get a certain amount of material / debris build up within the middle to bottom areas, though this never caused any issues. Although I'm sure this is a natural occurrence, it just doesn't add to the overall look / appeal of it.
 
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Evening. I'm after a little bit of advice, my friend asked me about setting up a tank for his Piranhas, but I really only know about marine stuff. Could someone recommend a decent external filter for a 300l tank(I was planning on connecting an inline heater to this).

Also any help regarding plants and substrate would be much appreciated.
 
With messy fish like these, albeit there are numerous Piranha species, a Fluval FX6 is the way forward.

Water volume only tells part of the story regards suitability of a species for a tank, many ~300l are squat 4-footers, I'd take my ~6x1.5x1.3 everyday of the week for fish of this size (my one contains five fish species singletons of ~18-30cm SL among the occupants).

I've never kept Piranhas, so I cannot advise on the tank structure, but I'd expect them to want an area of the tank where the group can feel hidden from view because I believe they can be rather skittish despite the reputation they have (eg. Jeremy Wade from River Monsters sits safely in a pool with a massive group all avoiding him like the plague).
 
With messy fish like these, albeit there are numerous Piranha species, a Fluval FX6 is the way forward.

Water volume only tells part of the story regards suitability of a species for a tank, many ~300l are squat 4-footers, I'd take my ~6x1.5x1.3 everyday of the week for fish of this size (my one contains five fish species singletons of ~18-30cm SL among the occupants).

I've never kept Piranhas, so I cannot advise on the tank structure, but I'd expect them to want an area of the tank where the group can feel hidden from view because I believe they can be rather skittish despite the reputation they have (eg. Jeremy Wade from River Monsters sits safely in a pool with a massive group all avoiding him like the plague).

Thanks, I will take a look at the FX6. They are red bellied ones, and yeah they can be quite skittish. When you put a hand in for maintenance they will hide together in a corner, but after a while they will get a bit curious.
 
Gnarly male Farlowella -
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And several more N. eques fry of a vanishingly small size -
gNB8CY.jpg


I've also just taken a bit of a risk and added a mated pair (with fry) of Guianacara stergiosi. They went in yesterday afternoon and after a bit of general consternation have successfully rounded up most of their fry and set up shop under the wood at the back of the tank. 24 hours later I still have all my neons and everyone is pretty calm, so fingers crossed.

Here's the male in what appears to be parenting mode (no markings except a 'teardrop'). The dorsal injury is an old one.
YwblHu.jpg
 
That's stunning! How big is the tank?

That's the kind of talk I want when I finally settle down somewhere. Haven't had a tank since before I went to uni...
 
WooHoo!

My tanks finally cycled. It only took a month, but it feels like forever when you're waiting to put plants and fish in.

Will keep it stable for a couple more days before my huge water change and planting.
 
Hello guys, I've started getting some nasty looking red spots on a couple of our Golden Barbs,


Have been using melafix but doesn't seem to have much impact :-(

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It looks like a bacterial infection. You're not using carbon in your filter are you?
 
No is that a good or bad thing? When you have a bacterial infection does it reside in the water as I've used some of the tank water for for a new larger tank today?

Carbon removes meds from water so it's a good thing it's not in there.

If it is bacterial, then using the same water in another tank is a bad idea. Do you not have a small treatment tank you can move the affected fish to?
 
Yes I have a small extra tank I could use, I'll place them in there and try a bit more melafix.

Also while your handing out advice I currently have a 64 litre tank with a internal filter, yesterday I set up a 120litre tank which uses an external canister, what do you reccomend I do with regards to retaining the good bacteria from the sponge in old tank, do I run the internal filter in the new tank and the canister at the same time or squeeze the filter from the old tank into the canister basket?
 
Use the internal filter medium in the canister filter. However, if it's from the tank that may have a bacterial problem, I wouldn't. Just start with fresh. The cycle will take longer, but it will be safer in the long run.
 
Guys these fish tanks are absolutely stunning! My dad has a empty tank in the front room that's not been used for a long time! I also know that he misses it! If i can find out the make & or dimentions would you guys be able to help me spec up some equipment for it!

I know that it is quite big maybe 100+ litre

it has a filter system in a separated compartment below the main tank that is quite big probably 30-40litres with i think a skimmer is it called? not to sure, he was keeping marine fish in it and think it would be a great project for us to do together. Our main problem was the light continuously gave us havoc including electrocuting us at times so i would certainly like to remedy that!

We still have a water filtration system thats hooked up to the water mains that takes about a long long long time to produce " filtered " water to go into the tank

Thats about all i know for now :)
 
Final water change and planting. A little cloudy, but likely to be for a few days after the substrate being disturbed and fresh water being pumped in.

Good dose of Seachem Prime. Will let it cycle a few more days and all the cloudiness should clear up. Fish soon hopefully.

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