BELDT’S AQUARIUM 
SAINT LOUIS, MO. 

A very good 
tanks. 
square inches; 
weight, 3 lbs. 
Price 
Offer 
$11.75, 
® rubber tubing. 

overfeedinge 
Price, each 

Thiberg Air Pump 
unit able to provide suf- 
ficient air for three 
Floor space 3% 
Special Combination 
I Columbia Pump and 
1 Junior Filter for only 
includes 4 ft. of 
Acme Junior Filter 
When the water be- 
comes milky from 
otherwise stagnant, 
it is necessary to fil- 
ter the water. 
filter is designed for 
smaller aquariums. 
wee! $2.00 
compact 
shipping 
Marco Air Pump 


A fine piece of workmanship; a very popu- 
lar pump. Will supply ten outlets. 
floor space, 6x4%4 inches. 
Filter Supplies 
Best filtering charcoal, per quart 
Per gallon 

Activated carbon. A very high grade 
filtering compound. Will filter any 
discoloration out of water and leave it 
absolutely clears Bervquart.- 5) eee 50 
Perigallonece: eee ees ae 1.60 
All-celluloid Filter 
Daily capacity, 300 gallons, 

Model A complete with filtering material, 
9 
LT ae ee ge etealal charcoal and gravel! —.2...-..... $4.80 
ose aire Model B 
a CAMEL CIC AIS OT Sree ce NS: ace re ase ee en $30.00 
: Model B-2 
Thishp2oeheleasersie: eee. es hee, $35.00 
Takes up 
Celluloid Tubing 
3/16 in. diameter, 16 in. long, each............ $0.30 

























Standard Model 5/16 in. diameter, 16 in long, each............ -40 
Shipping weight, 8 lbs. 1%, in. diameter, 16 in. long, each................ 50 
No. 6 Air stone with 1-inch cel- 
luloid stem attached. 
DEVON eee $0.35 SB WO a ae $1.00 
No. 6A Air stone with 8-inch 
celluloid:stem. 
Ee poee J) eee g-06 No. 9 Cross pieces; each........ $0.35 
No.7 Brass needle valve for ad- : 
justing air flow in each outlet: 
also has tee for continued line. 
Hach $0.60 SEL OL ees. $1.75 
No.5 Hose clamp. These clamps 
are used at the end of the line and 
are very convenient. They can 
No. 8 Brass tee for branch con- SOR sed meee oF phe ao, i 
nections. needle valve for adjusting air. 
IOEKO es $0.25 DoZene se-= $2.50 | Hach.......... $0.35 iL OL eee $1.00 
Rubber Tubing 
No. 9 Rubber tubing to be used No. 11 U channel black rubber " 
from air valves to air stones in for fastening to the ends of glass Sea Foam Air Releasers 
the aquarium. partitions; will fit glass from sin- Each 
Perngt, 6e 100-ft. rolls......$5.73 gle window thickness up to 3/16- | No. 1—1%-inch round airstone....-...2....-2...eecc cece eee eee eee ences ene eeee $4.00 
incheplatesslagss, Wath the aid of | No. 2—l'-inehy round airs tom ee ioice cesses eseeoeneen eee 3.00 
ChesemUMmohaAnnelepartitions May |-NOs s—— lin ChieSQUAT.C) ALL SCON C aecce.. nares ee eee ae 4.00 
No. 10 Extra strong rubber tub- be made tight without danger of | No. 4—1%g-inch diameter by 1%-inch cone shape 4,00 
ing to be used for main air line. 
Aedes hd eeem 8e O11 b, essen: Te per ft. 
LOO Sf tam Oli si. .-<-<-. $6.75 
breakage. 
Jes WCE) GOCE HOON sco eke $0.25 

Nos. 1, 2, 3 and 4 airstones are mounted on chromium plated fittings. 
The chromium plated brass tubing has a 040x3/16-inch wall and an 
overall length of 16 inches. 
Page 31 
