. A field experiment was carried out in a randomized complete block design to evaluate the effects of three different water types on the growth of tomatoes: effluent water from shrimp culture tanks nutritive solution prepared for tomatoes, and water directly from the well. Groundwater (0.65 g L
−1
of salinity) supplemented with KCl and MgNO
was used with a shrimp stocking density of 50 postlarvae shrimp per m
2
3
. Evaluations for shrimp (mean weight, growth rate,