TROPICAL FISH FOODS 
NOLT’S TROPICAL FISH FOOD—A specially prepared food for both live bearers and 
egg layers. Contains the ingredients needed for promoting rapid growth and rich 
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CODELIVERMMEAL—=\/eryaerichimin eva cCalmins sierreneientaentneretene cinerea Per box 25c 
CLAM MEAL—May be fed alone or mixed with other foods......... Per box 25c 
DRIED GROUND SHRIMP—Pure shrimp, no filler. For gold or tropical fish. 
Per box 25¢ 
TURTLE FOOD—Excellent for turtles and salamanders................ Per box 25¢ 

TROPICAL FISH SUPPLIES 
For the hobbyist who wishes to have the best in aquarium results we 
recommend the following aeration and filtering equipment. 
MARCO AIR PUMP—Designed and built to withstand hard, continuous service and 
aerate 10 to 12 aquariums. Self starting, non-reversing, noiseless; creates abso- 
lutely no radio interference. Uses 20 watts per hour and delivers 20 to 24 cu. 
INChesPOLPalre Dela minutes \Viodel Aw caverns Ructeineneine erreieee ciate eror re ciecn cnet: $25.00 
MODEL B—Heavy duty, larger size will handle 24 aquariums, uses 26 watts per 
TOUT M eer cece t ear tantra there er Tee ates ena ahs sate a SRN Fetoond: aa Sere ath Sie fe eee ee $30.00 
MODEL B2—Heavy duty. Will handle 36 aquariums. Uses 32 watts per hour. $35.00 
TANKAIRE PUMP—A very satisfactory pump for use on several aquariums. .$17.50 
MARCO OUTSIDE FILTER—This filter operates efficiently and silently by means of an 
air pump—the same pump which is used to aerate the aquarium water. This filter 
works on the principle of siphoning water from the aquarium into the filter and 
then pumping it back into the aquarium. The water passes through a deep bed of 
carbon which acts as a fine filter medium, a gas absorber, decolorizer and general 
purifier, Next the water passes through a layer of special crystals which neutralize 
the acidity. The water is then returned to the aquarium crystal clear. 
Filter tor-aquarium= holding up to’ 25 gal7..: 25... sea ae ee eae $10.50 
Large size to be used on aquariums over 25 gals.................. $12.00 
Outside plastic filter for aquariums under 20 gals................... $5.50 
AQUARIUM AIR RELEASERS—Carborundum <......:......-2+ +06 senses -sac $1.00 
MARCO: BALEROSMISTARELEASERS & o..0e wc isso eo sic ode eye) rey iele Clsicr oieie) vietsnoner tomes $1.50 
RUBBER to connect pump with filter and releasers..................... 10¢ a foot 
AIR ADJUSTMENT VALVES for control of quantity of air used by each releaser or 
HCC ee er rrae w o calc yale atelitoaliane ever erate Maratea auA ee emia se Meera state $1.00 
AQUARIUM HEATERS AND THERMOSTATS—We have a large selection of electric 
heaters with or without automatic thermostats from.......................0:. 
5110) G6) 0) 8, 0) 6) 016 (0) 6,6) 6) | \6)-0) 6: (#) 0.0101 0, 4) 8! 6.0 
PLASTIC BREEDING AND NURSERY TRAPS—For saving spawn of egg laying tropical 
fish as well as saving the new born babies of live bearing fish. From $2.00 to $4.50 
The proper equipment will make 
your aquarium more successful. 


