for SCIENTIFIC AQUARIUM CONTROL 
AERATING EQUIPMENT 
Aeration has definitely established itself as essential to good 
aquarium balance, and experienced fanciers everywhere are rais¬ 
ing and keeping healthy fish with its aid. Free oxygen in water is 
necessary for the growth of fish and plants alike, while digestion 
of food is affected by the amount of available oxygen. Unfavor¬ 
able conditions harmful to fish and at the same time favorable 
to the growth of undesirable bacteria are oxidized by aeration. 
Take a step toward better aquarium balance, better fish and 
better plants by using a dependable aerator specially designed for 
this purpose. All of the apparatus listed below has been tested in 
our laboratories and we feel sure they will solve your aerating 
problems. 
TRICKER ACE PUMP. To meet 
the demand for a thoroughly 
dependable, inexpensive aerat¬ 
ing pump, Tricker experts have 
developed this fool-proof, noise¬ 
less pump to fill the need of the 
average fancier. A bellows type 
pump powered by a non-reversi- 
ble induction motor insures long 
life and quiet operation. Of 
sufficient capacity to aerate 4 to 
6 aquariums or to operate any 
filter at a price to fit the mod¬ 
ern purse. Size, lO 1 /^" long, 3 1 //' 
high, 4" wide. (Guar- ^07^ 
anteed by Tricker.) ' O—— 
Each . 
IMPROVED AGLA PUMP. 
Has been the mainstay of 
our line of aquarium aerators. 
It is the most efficient inexpen¬ 
sive pump we know of. Sturdy 
construction assures quiet oper¬ 
ation over a long period of time. 
The Improved Agla embodies a 
speed control for regulating the 
flow of air. and new type cylin¬ 
der and piston assembly provide 
more air and give longer life. 
Can be used on either AC or 
DC current. One-Cylinder Pump 
sufficient to aerate 12 aquari¬ 
ums, $15. Two-Cylinder Pump, 
same as above only 2 cylinders 
for larger capacity, $20. 
A 
Tricker Ace Pump 
Improved Agla Pump 
NEW LIFETIME AERATOR. 
The name is all it implies. 
The Lifetime Pump is motored 
by the finest fractional horse¬ 
power motor available and in¬ 
sures real lifetime service. The 
base, an integral part of the 
machine, acting as reservoir and 
equalizer, is molded of bakelite, 
as are the cylinders. Large oil 
wells and cups give fine lubrica¬ 
tion and minimize wear. All 
models equipped with 2 cylin¬ 
ders of large capacity. Will 
aerate up to 30 aquariums. 
$22.50. 
MARCO PUMP. Designed and 
built to withstand not only 
the hard service, but curiosity 
subjected by the average fan¬ 
cier. Nothing to wear, nothing 
to take apart, absolutely fool¬ 
proof. As for efficiency and 
economy, it will aerate from 10 
to 12 aquariums and consume 
less than 10 K.W.H. per month. 
Self-starting and stalling does 
not injure motor. A unit of 
considerable merit. $15. 
New Lifetime Aerator 
AIR RESERVOIR. Used in 
conjunction with any air 
pump for equalizing flow of air 
to aspirators. $1 each. 
ASPIRATORS. Small compo¬ 
sition stone for dividing air 
released into the aquarium into 
extremely fine bubbles. Domes¬ 
tic stone (A), 25c each. Im¬ 
ported stone (B), 35c each. 
Small adjustable nickel plated aspirators, 
plated and adjustable (C), $1 each. 
Marco Pump 
it 
50c each ; large size nickel 
SUPREME ASPIRATOR (D). Stone of carborumdum composi¬ 
tion mounted on chromium plated brass tube on ferrule. $1.25. 
CONTROL VALVES. Needle valves to control 
amount of air flow to aspirator. Special clip 
attachment permits valve to be clipped to bulb edged 
glass. One way needle valve control. 40c each ; $4 
per dozen. "T” form, 45c each ; $4.50 per dozen. 
BRASS CONNECTING FITTINGS. Available in T. L. and X form. 
25c each. 
RUBBER HOSE. Pure gum 
rubber tubing to fit 
valves, aspirators and filters. 
12 ft. for 50c; $3.50 for 100 
ft. Heavy laboratory type for 
same fittings, 12 ft. for 75c; $5.00 per 100 ft. 
AQUARIUM FILTERS 
“CRYSTAL” FILTER. Don’t endure an un¬ 
sightly aquarium with cloudy water or 
green algae growth ! This new Crystal Filter 
is effective with any aerator. Unlike old- 
type filters inside the aquarium, which dis¬ 
turb plants and fish and are objectionable in 
appearance and handling, the Crystal filter 
is suspended on the 
outside of the 
aquarium. Just set 
syphon, start pump, 
and Crystal will 
filter as much as 1 
quart of water per 
minute. 6 in. long, 
10 in. deep and 3% 
in. wide, complete 
with hydrated char¬ 
coal, filter wool and 
all material, $4. 
“CRYSTAL” FILTER AUTO-SYPHON 
MODEL. Same as regular model only 
smaller in size and with added feature of automatic syphon which 
makes same self-starting. 6 *4 in. long 2% in. wide, 6 Vfc in. deep. 
$3.50 each. 
ACCESSORIES 
In addition to furnishing the supplies listed here, we are also 
able to offer complete service on special equipment. 
AQUARIUM CEMENT. Mixed ready for immediate use. Retains 
elasticity indefinitely. 40c per can; 3 cans for $1.10. 
POWDERED AQUARIUM CEMENT. Our own superior brand. 
Powder and oil to be mixed as needed. 90c per carton ; $2.25 
for 3. 
VINELAND SCRAPER. Keeps aquarium glass clean without dis¬ 
turbing the fish or plants. Beautifully chromium plated; can¬ 
not corrode or rust. 15 in. long. Includes blade and rubber 
squeegee for perfect job. Gillette type blade, blade guard and 
mahogany finished handle. 50c each. 
AQUARIUM CLEANERS. Blade holder mounted on long exten¬ 
sion handles for reaching any part of the glass. 50c each. A 
special Simplex type for $1.50 each. 
PLANTING TONGS. Very useful for working among the plants 
in the aquarium. Each, 50c. Special Simplex type for $1. 
PLANTING SNIPS. For trimming old foliage from aquarium 
plants. $1.50 each. 
COLLECTION 
This group of three handy items in aquarium management 
described above—Simplex type glass cleaner; Simplex type plant¬ 
ing tongs and planting snips. Total value $4. (Collection No. 
402.) $3.50. 
AQUARIUM GRIT. Fine grit, especially prepared for growing 
oxygenating plants. 5 pound bag. 25c; 10 pound bag for 12 
gal. aquarium, 40c; 25 pound bag for aquarium up to 30 gal., 60c. 
10 lbs. or more sent by express. 
AUTOMATIC RUBBER SYPHONS. Rubber tube with metal bulb 
which sucks water automatically. $1 each. 
CRYSTAL SYPHON. Self-starting, handy, practical. 60c each. 
GLASS ROD BREEDING CAGES. 5x4x3 inches. Suspended in a 
small aquarium the cage may be occupied by ripe females of 
live bearing fishes. $1.50 each. Extra long type for spawning 
Danios, size 16x4^&x3% inches, $2.50 each. New type for Labyrinth 
Fishes permits the young to escape when they are able to swim 
free of the nest. Size T^x&xT^ inches. $3 each. V-Type cage 
has narrow opening in V shape bottom to permit newly born fishes 
to escape from parents. $1 each. 
Accessories—continued next page 
PAGE 45 
