Flagtail porthole catfish3/5/2023 ![]() ![]() The wet season occurs roughly between September and April, depending on geography, so it may be that some species will spawn only during these months. In the unlikely event of the fish still being unwilling to spawn, bear in mind that aspects such as barometric pressure and time of year can also affect breeding activity in many South American species. Replace the filter if you removed it, and if the hardness of the water was increased, use very soft (preferably RO) water for topping up. An increase in both organic compounds and dissolved salts is associated with the dry season, simply because there is less water around to dissolve them.Īfter a few weeks, increase the water level using cooler water and begin to feed the fish heavily. If you wanted to really push the boat out, you could also remove the filter (keep it running on another tank so it remains mature) and increase the hardness of the water slightly. The fish spawn at the onset of the wet season, so first lower the water level in the tank, increase the temperature by a few degrees and starve the fish for a few weeks to simulate the dry season. If you’re having trouble inducing a spawn, you could attempt a full-on simulation of the dry and wet seasons that occur in its natural waters. The fry should be big enough to take Artemia nauplii and/or microworm once their yolk sacs have been absorbed. Once eggs are noticed, the adults should be removed, as they may eat them. Apparently, copious amounts of live food are important to bring the fish into condition, as are large, cool water changes. Ideally, the object should also be secured in one place. With the closely related Hoplosternum genus, the most success has been had using a yellow-coloured object, so this may be worth considering. Add a piece of poystyrene or plastic lid of some kind to float at the surface and provide a potential nest-building site. If you want to try breeding these, it’s probably best to begin with a small group of 4-6 fish. urostriatum is reportedly a bubblenesting species, although some conflicting information exists suggesting that the eggs are laid in pits excavated from the substrate. Very scant information exists regarding the spawning of this fish in captivity. Mature females are likely to be rounder in the body than males. The leading few rays of the pectoral fins are thickened slightly in males. Oddly for a catfish, you will often see it swimming in a shoal in midwater when maintained in this way. Although it can be kept as a single specimen if you wish, you will find it far more outgoing and active if you buy a small group of 3-6 fish. It is totally unaggressive towards conspecifics. ![]() It is less suitable for a community of much larger or aggressive species, due to its shy, retiring nature. Ideal tankmates include other Amazonian species such as tetras, peaceful cichlids, Corydoras and smaller Loricariids. It will not harm even the smallest of tankmates, although tiny fry may be hoovered up. Behaviour and Compatibility Top ↑Ī very peaceful fish that is suitable for many communities. Here's a vid of him this morning with light on.To find other high quality, highly recommended foods click here. Also fed him some frozen brine shrimp, which he ate reluctantly. Update: the growths seem to have gone away, but he is still sitting in a corner of the QT tank, not moving much unless the current pushes him around. He also has a few tiny growths of columnaris(?) on the top/right area of his head. Here's a few pics of the hoplo from yesterday. ![]() ![]() The hoplo is now in a 10g quarantine tank with a heater and powerhead for water circulation. Didn't eat either, but I figure it's because he's adjusting to the new tank. He wasn't moving when I introduced him to the tank, and sat still on the bottom. I bought one of the hoplos against by better judgment, and acclimated it to my 20g, which has 4 upside down catfish and 3 swamp darters. A few of the other swords had stuff on the top of their heads. One of the swords was dead and being pecked on by another sword. There were 10 total, 4.5", in a tank shared with painted marigold swordtails. I just got a flagtail porthole catfish/hoplo yesterday.
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