I came home today and started feeding my fish when I noticed that my crayfish in the 29 gallon died and this is the 2nd one in that tank. I was a bit surprised so I checked the water for PH and it was good, I think it might of died while trying to molt. I pulled the dead guy out and gave it to my other bigger crayfish SuperTank for dinner and once again he scarfed it down very quickly. Even the pleco tried to munch on the remains while SuperTank was busy cruising around the tank.
After watching this for a bit I started my 20 and 29 gallon water change. I changed 50% of water in the 20 gallon and about 2/3's of water in the 29 Gallon. Now they say your suppose to only change 20% at a time but both my tanks are very well aged with lots of bacteria on everything so they re-establish themselves really quickly. Plus my 29 Gallon that I changed 2/3's of water also has a canister XP3 filter that holds like 4 Gallons of water with lots of beneficial bacteria so there is no need to panic. I just make ... Read More
Cleaned Up My Tanks and Some Food For SuperTank
Posted On 19 Aug 2008 By Bart Piotrowski. Under: Crayfish, Filtration and Setup, Water Changes and Testing.
I came home today and started feeding my fish when I noticed that my crayfish in the 29 gallon died and this is the 2nd one in that tank. I was a bit surprised so I checked the water for PH and it was good, I think it might of died while trying to molt. I pulled the dead guy out and gave it to my other bigger crayfish SuperTank for dinner and once again he scarfed it down very quickly. Even the pleco tried to munch on the remains while SuperTank was busy cruising around the tank.
After watching this for a bit I started my 20 and 29 gallon water change. I changed 50% of water in the 20 gallon and about 2/3's of water in the 29 Gallon. Now they say your suppose to only change 20% at a time but both my tanks are very well aged with lots of bacteria on everything so they re-establish themselves really quickly. Plus my 29 Gallon that I changed 2/3's of water also has a canister XP3 filter that holds like 4 Gallons of water with lots of beneficial bacteria so there is no need to panic. I just make ... Read More
Parallax Propeller Professional Development Board
Posted On 19 Aug 2008 By Bart Piotrowski. Under: Electronics and Robotics.
Parallax has released it's new Propeller Professional Development Board with lots of goodies on board. The selling price is $169.99 and they are currently in stock. This is a great board for electronic hobbyists, robot design or anyone that has some knowledge of electronics and some programming.
Key Features Include:
40-pin DIP socket for P8X32A-D40 Propeller microcontroller
24LC256 32K EEPROM included
5 MHz crystal included
5V and 3.3V regulators on board
Built-in USB programming interface
Six blue 16-segment LED displays (5V & 3.3V compatible)
Sixteen blue discrete LEDs (5V & 3.3V compatible)
L293D high-current driver for motors, solenoids, etc.
Eight active-low push-buttons with 3.3V pull-ups
Eight active-low DIP switches with 3.3V pull-ups
Two 10K potentiometers
Eight servo headers with selectable on-board/external power source
DS1302 real-time clock with battery backup/charging capbility
MAX4411 headphone amplifier with 1/8" stereo phone jack
MAX3232E RS-232 DCE interface
Two PS/2 ports with 5V power and 3.3V pull-ups on clock/data lines
15-pin HD D-sub connector for VGA monitor
Ground terminal for oscilloscope ground clip
Click Here for the link to this product on Parallax Website for more info.
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