aquatic %itt 



or Duckweed, and garden lettuce, on the 

 surface of the water in the rearing tank. 

 Preparations of dried plants for this pur- 

 pose can be purchased from dealers. 



When the youngsters are from ten to 

 fifteen days old they may be given the 

 tiniest Daphne and Cyclops, and a little 

 later some finely scraped beef. At the 

 age of six weeks, if they have been given 

 careful and consistent treatment, they 

 will measure about an inch in length and 

 have the bright red color on their fins. 



A number of species of Tetragonop- 

 teris have been studied by the aquarist, 

 but the blood-fin is most attractive in 

 shape and color. 



Those Happy Families 



Many times I am asked what fishes 

 can be kept in the same tank. In answer 

 I show two tanks set up six months ago. 

 None of the fishes have died, nor have 

 I discovered any torn fins, which are the 

 usual signs of discord. Of course, the 

 young from the live-bearing species have 

 not survived. A kindergarten in such a 

 tank would be expecting rather too 

 much. 



The smaller of the two measures 18 

 by 12 by 10 inches, and contains the fol- 

 lowing: 4 Alfaro ciiltratum, 4 Platy- 

 poecilus maculatus rubra, 4 Xiphophorus 

 helleri, 2 hybrids (X. helleri x P. macu- 

 latus rubra), 4 Lebistes reticulatus, 4 

 Girardinus reticulatus, 2 Haplochromis 

 strigigena, 2 Betta rubra, 6 Haplochilus 

 chaperi, 2 Trichogaster lalius, 12 Danio 

 albolineatus, 12 Danio rerio, 2 Barbus 

 conchonius and 2 Barbus semifasciola- 

 tus. 



In the tank 42 by 16 by 14 inches I 

 have 40 Xiphophorus helleri, 12 Macro- 

 podus viridi-auratus, 4 Osphromenus tri- 

 chopteris, 12 Platypoecilus maculatus 

 rubra, 20 Barbus conchonius, 10 B. vit- 

 tatus, 10 B. semifasciolatus, 4 Poccilia 



vivipara. 



The figures given refer to the indi- 

 viduals ; all the species are in pairs. — 

 Hugo C. Nelles. 



Mr. William L. Paullin has had all 

 sorts of combinations. In a large tank 

 containing Pterophyllum scalare he has 

 a number of broadtail goldfish. These 

 serve as scavengers to consume food 

 dropping to the bottom. There was a 

 little fin-nipping at first, but the novelty 

 soon became common place, and no 

 further notice was taken of the bright 

 co-inhabitants. 



Another tank, thickly planted, with a 

 capacity of 125 gallons, contains Danio 

 albolineatus, D. Rerio, Barbus (3 

 species), Haplochilus (several species), 

 Osphromenus trichopteris, Trichogaster 

 fasciatus, Betta splendens, Polyacanthus 

 dayi, Macropodus viridi-auratus, Mol- 

 lienisia latipinna, Poecilia sphenops, Xi- 

 phophorus helleri, Platypoecilus macula- 

 tus, Linda caudofasciata, Lebistes reticu- 

 latus, and young examples of Hemi- 

 chromis bimaculatus, Cichlasoma face- 

 turn and Haplochromis strigigena. 



In an octagonal aquarium, with an 

 estimated capacity of 15 gallons, Mr. 

 George W. Price has associated Tetra- 

 gonopteris guppyi, Aphredoderus saya- 

 nus, Enneacanthus gloriosus, Ambloplites 

 rupestris, Hemigrammus unilineatus, 

 Haplochilus Panchax, H. lineatus, Tri- 

 chogaster lalius and T. fasciatus. In 

 another tank, long and narrow but deep, 

 full grown Paradise fish (Macropodus) 

 get along well with Platypoecilus. 



Mr. George Cuthbert reports Hemi- 

 chromis bimaculatus, Platypoecilus mac- 

 ulatus, Xiphophorus helleri, Lebistes ret- 

 iculatus, Gambusia holbrooki, Polyacan- 

 thus opercularis, Macropodus viridi-au- 

 ratus and Cichlasoma facetum, the latter 

 not more than 1^ inches, doing nicely 

 in a fifty gallon aquarium. 



