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I don't see why not. If you are buying from Aquagreen, they might have some DAE or Chameleons too. You could stretch the total population of the tank if you get a large external canister filter. By large I mean something that is aimed at filtering a tank larger than a 20L tank. That will increase the bio filtration and you could stock more in the tank. Just don't go too crazy.

HAHA LOL. All my QT tanks have been used for other shrimp or fish as well. I can never keep a QT tank for very long. A 20L tank isn't very big, so 5 or 6 initial guppies accounting for babies in the near future. The tank can hold some shrimp but I would think it is too small for another type of fish.

Bloody Mary are often thought to just be a higher grade, but I believe they actually originate from a different wild shrimp than cherries, although they are still neocaridina davidi. This can be seen below. Bloody Mary are a much nicer looking shrimp, though, with a deeper red colour. Here’s a great video that explains it:

Hey folks! So I got myself a little 5 gallon (20L) recently (it was free!) to use for quarantine. I’m going to use it to qt some cory cats and maybe some tetras or gouramis for my community tank. The thing is, I’ve got it set up really nicely in my room and I want to have it actually stocked. I definitely don’t want a betta, but I found some super cute guppies on gumtree (Wild Thai Orchid) that I can never find locally. How many guppies do u think I could get in the tank?? The seller only has 4 pairs, so is selling in pairs but not trios, so that could have an affect on the amount. I also plan on adding shrimp, either of a neo or caridina variety, or native - like dae or chameleons. So my questions are: how many guppies could go in the tank (assuming they breed and I keep the babies in with them for about a month each time), could I fit in anything else (with a pair or 4), like a couple of chilli rasboras or rocket killies, and will the shrimps be enough for a cleanup crew, or should I add an Otto or something? Cheers!

I have been looking around and the general consensus is not to keep guppies with killis, so you would be better off one or the other type and so I guess you would pick the breeding guppies? I would just start with 4 guppies though as they will produce 2 lots of babies anyway with the 2 pairs! Simon

That probably is a bit too much fora 20L I have 8 fish in 30L (each fish max 1 inch) and some shrimps and snails. Guppies produce quite a ;lot of waste as well! I would personally pick one or other, either the 6-8 guppies or the 4 rocket killies, and some shrimps. As you state, the guppies will have babies so that adds to the bioload etc as well? Would the killie eat the baby guppies? As you have already said, it is probably a case of pick one or other?? If you really want to mix then I MAY try a pair of killies (though you say they are schooling fish) with 2 pairs of guppys (check they are compatible first in a small tank though) at the most (plus shrimps). The other thing to bear in mind is that if it is a 20L tank, it probably only has 16L of actual water with other bits in the tank (substrate, heater, filter, ornaments, plants etc etc) and it not filled to the rim - my 25L has 20L of water, my 35L has 28L of water? As for snails, it does add another interest to the tank, I keep assassins in all my tanks, they do breed (slowly) but even I can easily catch them when their are too many. They will help keep the tanks cleaner (glass etc) and devour anything that may die as soon as it dies, so I always include some snails! You should also plan to do maintenance and water change once a week of about 20% if sensibly (not over) stocked. If you decide in the future to get nano fish like the chilli/spotted rasbora then 8 of those would be what I would (and had planned for my 25L if the betta didn't survive) with no other fish of coarse? Hope this gives you something to mull over, but I would not class myself as an expert.............. Simon

Actually I'm starting to think that I could do a pair or two of rocket killies to hang out up top, as the guppies mainly explore the top to middle. I don't think that 6-8 adult nano fish in a 20L is tooo much, is it? With babies it would just be survival of the fittest, I guess, and those who make it go into my big tank or get sold. And I'm still planning on keeping some chameleons or my TTs in here. I might get some DAE eventually, which would QT and grow in this tank then move to my 110. Can I have some opinions on this from the mods or anyone who cares? Cheers!

Rabbits are crazy cool. But they’re big and totally pricey. I’ll probably just avoid snails altogether. Shrimp will do.

Even if you get both males and females they only give birth once a month to two baby snails.

That’s a good idea thanks I’ll keep it in mind when stocking.

They only breed in brackish but still lay infertile eggs everywhere and it looks disgusting in small tanks. I’d recommended rabbit snails as they have two genders and will only breed with the other sex so make sure you get all males or females the only downside is they are a little pricey.

No I intend to breed. As I said the guy is only selling in pairs so cannot do a trio. Problem with the killies is that they prefer schools. It’s one or the other really. And I can do killies any time, so I’m going for the guppies for now, unless anyone has a good reason why I could do both. The only snails I’ll do are nerites, so they don’t breed. Waiting for aquagreen to get their native nerites back in stock. In terms of shrimp, could I do natives like dae or chameleons? ( @jayc)

How about one male two females and some rocket killies? I think that would work and maybe even some shrimp also if it’s not intended for breeding. You can always relocate some of the killies to your community if it doesn’t work. Sorry not shrimp snails.

Great. I’ll probably change it up at some stage to feature some other cute nano fish, but I’ll keep it simple for now. Can we get nerites in Australia?

Hmm I am now thinking about using hydrogen peroxide to try to kill off the bests. Marks Shrimp Tanks Recommended that I use it for vorticella. https://www.int-res.com/articles/dao/36/d036p213.pdf link shows research on stuff that kills ciliates similar to vorticella. Since hydrogen peroxide basically oxidizes whatever organic matter it touches and then the rest become oxygen and water. I assume it to be more harmless

Yeah i dont reallly mind if the betta end up eating the shrimp as i can move them to my 10 gallon. Also whats the difference between RCS and the bloody mary variety?