.HIGH WINDOWS
AROUND ENTIRE
WALL
INSULATION
INCANDESCENT
LiQHTS
ELECTRICAL SERVICE
AIR, COLD WATER AND
WARM WATER
40-QALLOM
TANKS WITH
OVERFLOW AND
DRAIN
FLOOR DRAIN
1. Sectional view of a general purpose aquarium building.
works relevant to fishes' response to length of illumination. Some fishes show marked photoperiodicity in
their spawning behavior.
The importance of fight to plants is readily observed, however, and the intensity of illumination is
frequently based more on the requirements of aquarium plants and the requirements for the control of
algal growth than upon the possible needs of the
fishes. The recommendations on lighting that follow
are based largely on supposition and experience.
Natural lighting for the aquarium building is furnished by the windows suggested in the building plan.
Gordon (1950) rather strongly recommends fighting
from directly above, but no strong evidence indicates
that this is essential. Due to problems in heating and
AROUND ENTIRE
WALL
INSULATION
INCANDESCENT
LiQHTS
ELECTRICAL SERVICE
AIR, COLD WATER AND
WARM WATER
40-QALLOM
TANKS WITH
OVERFLOW AND
DRAIN
FLOOR DRAIN
1. Sectional view of a general purpose aquarium building.
works relevant to fishes' response to length of illumination. Some fishes show marked photoperiodicity in
their spawning behavior.
The importance of fight to plants is readily observed, however, and the intensity of illumination is
frequently based more on the requirements of aquarium plants and the requirements for the control of
algal growth than upon the possible needs of the
fishes. The recommendations on lighting that follow
are based largely on supposition and experience.
Natural lighting for the aquarium building is furnished by the windows suggested in the building plan.
Gordon (1950) rather strongly recommends fighting
from directly above, but no strong evidence indicates
that this is essential. Due to problems in heating and