I have 2 Altispinosas. These are really fun little fish. They are always dancing around the front of the tank looking for attention. They are currently being housed in a 120 L tank with two 8 cm Oscars, two 8 cm Yellow Labido´s, 2 Pink Convicts and 1 8 cm Jack Dempsey. Don't worry about these Altispinosas! They can take care of themselves. The larger of the two goes mouth to mouth with the Jack Dempsey sometimes at feeding and never backs down. Other than that the only aggression is by the slightly larger of the two chasing the smaller one with no harm done. They never go after the other fish. I have a 7.2 pH and the temperature at 26°C. They are very easy to feed...I mix their diet with flakes, shrimp pellets, brine shrimp, and bloodworms. I understand that they will be around 10 cm.
I have just placed two of these fish in my community tank which includes 2 Discus. They have heaps of character, are not too aggressive toward the other fish, yet they put on a good show as they squabble amongst themselves, especially during feeding.
I have a small group (4) of Bolivian Rams residing in a 90 L tank with 2 Corydoras, 8 Neon Tetras, 4 Glowlight Tetras, 2 Otocinclus, 1 Chinese Butterfly Pleco. I have had them for a couple of months and I find them to be very interesting to watch and extremely beautiful fish. I have 1 sexually mature male for sure. He is larger than the other 3, has long trailers on his caudal fin and the front half of his body is a brilliant yolk like yellow. He seems to have paired off with one of the other fish that I assume to be a female. She is smaller in length, but just as thick, lacks trailers on her caudal fin and does not have as much yellow on her torso. The other 2 Rams could be female or immature males or another, younger pair. Recently the big male has made a depression in the sand that he hangs out in or around for most of the day. The female is always close by, and the other 2 Rams have the vast remainder of the tank to themselves. I am hoping that this is the beginning of a courtship for the pair that may lead to a possible spawn. I try to feed a varied diet, alternating between frozen blood worms, live tubifex worms, flake (which I pre-soak so it sinks to the bottom), and spirulina flake. I have tried shrimp pellets, but without much success.
M. altispinosa, wonders of the world they are. Enthusiatic and easy to care for, they are popular amongst aquarists. In addition, they are quite peacefully temperamented and make a good community fish. Personally, I have three in my 140 L tank, and find they will live with almost anything other than much larger cichlids. They will remain unphased by other fish's presence and continue their regular behaviours.
I have a 170 L where I've kept one alti for about 3 months. I wanted to get a pair, but to this day I can't find a definite female! I bought a couple more that COULD be female, but when I added them, it was all out war. The original alti patrolled the center of the tank, if either of the newbies came anywhere near him he would brutally beat them up. I had to take them back, and I am still searching for a mate, because I absolutely love this fish! I keep him in a community with tetras, rasboras and such. He gets along with them just fine.
These are one of my favorite fish, and I much prefer them to the blue rams. One thing I have noticed, however, is that these fish may appear as the opposite sex. I had two females in a 200 L, but after a year I moved them to a 75 L. After I returned from a three week vacation, I noticed that the subdominant female's third ray on its dorsal fin had grown considerably and the extensions on its caudal fin and pelvic fins were longer than those of the other fish and had seemed to change while I was on vacation, as the fish were almost indistinguishable beforehand. A few days later, the fish spawned, but ate their first batch of eggs. The dominant female was definitely female, but the subdominant female had suddenly become a male! The female still bosses the male around and was displaying and trying to force the male to spawn with her during courtship, so the relationship between the fish has not changed that much except now they are a mated pair.
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