Serpaes tended to have a few skirmishes amongst themselves, but nothing major. After I added peat, it really seemed to bring out the colours of all the fish. They have beautiful deep red colouration, and it got very intense when water conditions are just right. The serpaes I had schooled some of the time, but not as tightly as Cardinals. My experiences with both of these fish have been very good. Sorry if this was a bit long-winded, hope it helps, and good luck! The bleeding hearts might also become richer in color depending on diet. I still have that one serpae left (he just won't die!), and he now pretty much keeps to himself, though I occasionally find my cories with chunks taken out of them - no fatalities for awhile now though.Īre you planning on having just serpaes or do you have a community tank? From my experience, I think the bleeding heart tetras would probably be a better choice for a community tank. it was like the Thunderdome in 'Mad Max'. I kept adding serpaes to replace the ones that died off, but the biggest serpae in particular would attack and kill the new-comers. If the fish didn't die from the initial attack, they often succumbed to fin rot that resulted from their injuries. However, even in a group mine were pure EVIL - they nipped their tankmates, the nipped each other, until one day there was only one left standing (along with two now skiddish cories and one indifferent oto). I bought myself a small school of serpaes (I was told they were fin nippers but would 'behave' much better if there was a group of them), IMO they are one of the most beautiful tetras because of the deep red color. You should make a partial water changes (about 1/3) every day.I can't answer your question about the bleeding heart tetras, but I have experience with serpaes that I can share with you. The fry start to swim and feed 3-4 days later. You have to immediately remove the parents after spawning because they eat the eggs. The fish will spawn every few days but male's capabilities in eggs fertilization will be gradually decreasing. They should spawn next day, in the morning. The thickest female and most colourful male should be transferred to the breeding tank, in the evening. Before spawning you should separate males from females and feed them with plenty of food. Breeding aquarium should have soft water, pH=5,5-6,5, 27-30☌ temperature, sponge filter with peat, soft and fine-leaved plants or a fish hatchery. Tank should be covered to stop light getting to the water and all light sources should be off all the time because the eggs and young fry are sensitive to light. Breeding should be made in a separate tank. They seem to be getting velvet disease quite often. Fish are sensitive to sudden fluctuation of water parameters. It is necessary to cover the tank because this fish may jump out of the aquarium, clear water and substrate, partial water changes – up to 50% - should be made once a week. Water should have colour of "light tea" - you may add peat to a filtration system or you may put it to a net and dive it in the water. The biotope tank should have dimmed light, dark sandy substrate, floating pieces of wood, twisted branches, dried leaves of beech or oak which need to be changed every few weeks. The general aquarium should have a lot of plants, space to swim, dimmed light (floating plants), dark decorative elements, dark substrate, hiding-places. You may keep this species in a general or "black water" biotope tank. This species should be kept with other tetras, danios, rasboras, corydoras, gouramies, small species of catfish and dwarf cichlids. In too small group fish can be shy or aggressive towards other residents, especially towards fish with long, flowing fins. Fish prefers to live in a group of 6 minimum. This is peaceful, active, and shoal fish. Male is more colourful and he has first rays of the dorsal and anal fins longer than female. Second one has less visible spot behind the gills cover and it has wider red stripe stretching along the lateral line than the bleeding heart tetra. First one is smaller (up to 5 cm) and its lower part of the body is more red. This species is often confused with Hyphessobrycon socolofi and Hyphessobrycon pyrrhonotus. The dorsal and anal fins have a black dot. Sometimes there is a red, narrow stripe stretching along the lateral line up to the tail. There are red spots behind the gills cover (heart-shaped) and on the base of the tail. Colour of the body is gold-pink with whitish lower part of the body. Body descriptionīody of the fish is a laterally compressed. This fish lives in the mainstream of the Upper Amazon and its tributaries and streams with "black waters" in Brazil, Colombia, and Peru.
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