Good to read the tank upgrade has helped them get more active.
The toxicity of ammonia readings all depends upon the water temperature and its pH, warm alkaline is far more dangerous than cool acidic.
Even if you are running the old filter (or its contents/media) in the new tank, despite...
Tank dimensions rather than volume is a far better indicator of what fish are suitable, I have a ~62x39x55cm ~130l and a ~120x30x37 140l, the 130l is very limited in what can live in it for life because it is so short.
Golden Wonder Killifish will try and eat anything they think is...
I struggled to make out sexes of the Kribs in the video clip, but I would expect the one in your photo to be a male.
If it was me, I would look out for a 120cm long tank on Ebay or other online sites for second-hand tanks, most of my 7 tanks were not bought new and saved me a fortune. My...
I'd be concerned about Rosy Barbs on two issues, they are temperate fish that would live better quality and longer lives in a heaterless tank that changed temp with the seasons, plus especially while being kept in warm water needed for everyone else they would be zippy as well as greedier eaters...
Some tanks, especially squat/cube ones like this and my Aqua One 620T, do tend to give confusing water volume readings. My 620T is ~62lx39wx70h cm including the hood for the lighting and wet/dry filter, but can only be filled to ~55cm, giving ~130l.
Young Ctenopoma do tend to do better in groups, but as adults a singleton is fine. A lot get brought back to stores because they were bought small and eventually started eating the small fish in the community tank in which they were placed, maybe look out for one of these?
Celestial Pearl Danios will not do well with larger, piggy eater or territorial fish. Keep them with placid, similar size species, for example Rosy Loaches (which they are found alongside in the wild).
Fundulopanchax gardneri can be a threat to smaller fish, I've had the closely related...
Harlequin Rasboras deserve a tank in excess of 75cm long, they are reasonably active fish. Very few fish can responsibly live their whole lives in a 60cm long tank or less.
Your existing 4 goldfish should be in at least a 250l tank. They do have a filter, don't they?
Dechlorinator does not...
What temp are you trying to maintain the water at?
What temp is the ambient air in the garage?
I have a Rio400 under several layers of bubblewrap, sheets etc. in my very basically insulated garage using a single 300W Visitherm heater, but I'm only trying to maintain 18C for my Ilyodon xantusi...
Another fish that should be quarantined, due to their collection from the wild and then starvation as they travel through the various levels of the aquatic trade, to end up in store tanks where fish are often underfed. Otos with sunken stomachs are a risky purchase, but at leasty in a QT, you...
Do you not think it is incredibly irresponsible to have multiple uncycled tanks and then not be around to do the often daily water changed need to keep the water safe during a "fish-in cycle?"
Your pets would have better odds of staying alive if you took them with you, transported in a few...
Sounds like you should put a dirty sock or two in these tanks to clean them. :p ;)
The words "machine" and "washing" spring to mind, 10g is only 38l before with take account of sand/bogwood etc. that will reduce water volume, 10x water turnover is considered high for all but the most...
That fry has far better odds of staying alive with the Harlequins in the 35g, especially if there are no other fish in the smaller tank. In the large tank, it is only a matter of time before it will be eaten by someone.
How many males and females are there in the group? If their anal fin is not damaged/nipped, you can tell by the rear edge of the anal fin, it is very vertically straight for females and in males the lower half tends to trail back.
See if you can play around with the filter output, so you get...
There are at least four "golden rules" to keeping African oddballs like Leopard Bushfish...
No fish that will stay streamlined <2cm body depth/width (otherwise they will be eaten eventually)
No fish that are zippy/active such as rainbowfish (their activity will really spook the bushfish...
How big is the tank (dimensions, not volume)?
How many ABF?
Were they all added together, or is the "big bully" more established in the tank?
Any line of sight barriers at the water surface (floating plants, emerging bogwood/ornaments)?
A 3.5 foot long tank is not suitable for these bigger, active rainbowfish for life, which need a 4-foot at the very least but I personally think they are far better suited to 5-foot plus aquariums.
A tank such as this only suitable for species upto and included "Celebes Rainbowfish" i.e. ones...
Have you looked at the SeriouslyFish profile for Pearl Gourami? http://www.seriouslyfish.com/species/trichopodus-leerii/
They are very adaptable fish, a hardness tolerance of 2-30 is huge.
Did you ask to see the Rams eating in the shop tank before purchase?
This is a perfectly reasonable request, even more so if you are planning to buy a species that can be problematic to get feeding on hobby prepared foods eg. wild caught Chaetostoma spp. (Rubbernose Plecs).
Some fish, despite decades of being in the hobby, simply fail to breed at all or in sufficient numbers for demand in commercial fish farms. Synodontis catfish species (with the exception of Rift Lake types and a few "random" success stories) from Africa are one of many examples. Consequently...
I doubt it was nitrates that killed your fish, if it was deep gravel, you could have had pockets of nasty compounds that were suddenly exposing themselves to the fish eg. hydrogen sulfide.
The "dirty" white sponge might have also had a sizable good bacteria colony in it if it had been in the filter for some time (eg. more than a few weeks), along with the old gravel, look out for toxin spikes in the coming days and in the meantime try and have more water surface rippling than...
How big is the plec?
What are the dimensions of the 20g?
What fish are in the tank where this catfish has lost its eyes?
If the catfish will physically fit in the 20g, it should be moved there, even if it just very temporary before you consider something longer. Make sure to transfer over a...
That is already more than I would stock in a 110l, even if it was a 4-footer.
Mixing cichlids from different continents is risky, the body language of Kribensis and Apistogramma will conflict. Breeding Kribs would need at least 90x30cm floorspace to guard a group of fry in a community, even if...
Congo Tetras (Phenacogrammus interrupterus) are part of the classic "African oddball" fish, of which Ropefish are part, a group with ~3 males and ~6 females would look great.
They might need "growing on" in another tank for a while to safe, but another "African oddball" that will school is 10+...
You don't mention a filter (or I missed that info) in the old or new tank.
The beneficial bacteria do not just live in the filter, they colonise all surfaces inside a tank. The "tossed old stone/sand from prior tank" could have had a sizeable bacteria group on it and the remaining bacteria in...
Being tank bred means very little when it comes to temps, WCMM have evolved to live in waters that vary from ~5C upto ~22C in the peak of summer, these are fish to keep in an unheated tank.
Prime will bind with other compounds in the tank water, it will not just "float about" in an active state waiting for the untreated water to arrive, including organic waste and nitrate. ;)
A lot of it will come down to how much of a real bioload increase these 40 new fish are, compared to the bioload your FX5's (and elsewhere in your tank) bacteria colonies are used to.
If you don't already have a lot of water rippling for your Redline Torpedo Barbs (which I don't agree with...
Remind us again of your water stats... hardness (kH and gH); TDS if you have a TDS meter; pH of water after ~24 hours for carbon dioxide to escape etc.
Those fish you have said you like are lovely fish, but if you live in a hard water area like me, it is not going to be ideal for them.
Depending upon tank size, species like Congo Tettras; Yellow tail Congo Tetras; Synodontis nigriventris.
In a bigger tank you can look at Distichodus affinis that are very social for this genus, I have 3 in QT at the mo after getting them last Sunday, they will be going in my African...
I wouldn't put Kuhli Loaches or Black Skirt Tetras with either of those African oddballs, they will disappear (at least while smaller).
Not only that, nippy fish with ABF is a really bad choice, even if you do get a big group.
In addition, even if they escape predation as mature adult...
Great deal, but what size are they roughly excluding tail fin, what are the dimensions of your tank and what is already in it?
Keep a daily eye out on ammonia/nitrite, I'm expecting you to have a serious toxin spike and need plenty of regular big water changes for the coming weeks.