. Goldfish varieties and tropical aquarium fishes; a complete guide to aquaria and related subjects. Fig. 140. Madagascar Lace Plant{Life sice, half-grown) of growth and prefer a subdued light. Propagation is by division at theroot. This sometimes takes place in the aquarium, but they do best inwooden tanks. At best they are slow growers which in a way is an ad-vantage, for they eventually become rather large. The Lace- or Lattice-leaf plant is used purely for ornamental purposes, its qualities as an oxy-genator being negligible. TROPICAL AQUARIUM FISHES 101. Fig. 144. Crvstalwort {Life size)
. Goldfish varieties and tropical aquarium fishes; a complete guide to aquaria and related subjects. Fig. 140. Madagascar Lace Plant{Life sice, half-grown) of growth and prefer a subdued light. Propagation is by division at theroot. This sometimes takes place in the aquarium, but they do best inwooden tanks. At best they are slow growers which in a way is an ad-vantage, for they eventually become rather large. The Lace- or Lattice-leaf plant is used purely for ornamental purposes, its qualities as an oxy-genator being negligible. TROPICAL AQUARIUM FISHES 101. Fig. 144. Crvstalwort {Life size) WATER POPPY Limnocliaris liiimboldti, owing to its generally satisfactory qualities,has become one of the most popular plants in the indoor and outdoortank, as well as the large aquarium. It grows very rapidly and continu-ously sends out new plants which have groups of buds. Usually a newbud blooms every day. The 3-petaled yellow flower with a brown eye orcentre only lasts a few hours but is a most pleasing and artistic parent plant should be potted, preferably not very deeply in thewater. The new plants run at the surface, occasionally sending downstrong stems to obtain a fresh rooting. 192 GOLDFISH VARIETIES AND Floating Aquatics DUCKWEED This commonest of all floating plants is found in several species instill pools everywhere. From the middle of summer until cold weathermany ponds are completely covered with this green mantle, greatly in-terfering with the work of collecting daphnia for fish food. Duckweeditself is a good food for gold
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