244 BULLETIN OF THE UNITED STATES FISH COMMISSION. 



30. Is shallow or deep water best for carp ? — A. Shallow water is usu- 

 ally warmer, and hence better for carp. Better have both, if possible. 



31. What temperature of water is best adapted to carp ! — A. High 

 temperatures. They can live in cold water, but do not grow much. 

 They thrive in warm water. 



.">2. Is slow-running water suitable for carp? — A. They are sluggish 

 and care nothing about running water. 



33. Will carp live if water is not running through pond ? — A. Yes: 

 all the better. 



34. Will carp live in reservoirs of rain-water in Texas ? — A. The rain- 

 water might become too stagnant and injure them, but if kept sweet 

 the carp could live. However, no more food should be put in than they 

 can eat. 



35. Will muddy water hurt carp ? — A. No. It is their delight. They 

 can usually get food from it. 



36. Is well or spring water best adapted to carp ? — A. It makes no 

 dill'erence. Neither is desirable. 



37. Are streams suitable for trout good for carp? — A. No. Trout 

 require clear, cold water; carp, warm water, and it need not be clear. 



38. Are mineral waters bad for carp ? — A. Cannot tell without know- 

 ing more about the mineral water. Brackish water is not injurious. 



39. Will carp live in Bocky Mountain waters ? — A. Probablv live, 

 but not grow much, because the water is too cold. 



40. Will carp do well hi limestone water ? — A. Yes. 



41. Is alkali water detrimental to carp ? — A. Unknown. 



VI. — PLANTS FOR CARP PONDS. 



42. What plants are best for carp? — A. Crowfoots, cowslips, water- 

 milfoil, bladderwort, horn wort, cress, water-rice, water-mace, water-oats, 

 Indian rice, water-lilies — especially the last six. 



43. Is grass in pond injurious to carp ? — A. Not injurious. 



44. Can water-cresses be too thick in a carp pond ? — A. Yes. The pond 

 must not be allowed to entirely grow up to vegetation. 



VII. — THE CARE OF CARP. 



45. Would carp succeed if placed in a common pond and left to take 

 care of themselves ? — A. About the same as when chickens and pigs are 

 left to take care of themselves. 



4G. Can carp be placed in pond at any season of the year ? — A. Yes; 

 but do not transfer them suddenly from warm to cold or cold to warm 

 water. 



47. What is the best time of day to deposit carp? — A. When you can 

 avoid a violent change in temperature. 



48. Will horses going to water interfere with eggs? — A. No. 



49. Will it harm carp to cut ice in pond where they are? — A. No. 

 They will be so fast asleep in the mud they will not care. 



