This is a long post but good info about fish care. Water temps on Cochituate this weekend will be bathtubish so with that in mind here is some info. Also, at the end there is two notes about adding salt and hydrogen peroxide. I personally only add the H2O2 in cartoppers and if my livewell pump dies. Adding less is better as too high of a concentration will harm the fish.
Fill livewell early in the day, at your first fishing spot. Water temperatures are coolest early in the morning. Cooler water holds more oxygen. Take water from open areas, avoiding stagnant backwaters, sloughs, or boat launch sites.
While the freshwater system is filling the livewell, turn on the boat’s recirculating pump and run it continuously until the livewell is full to build oxygen.
WhenWaterTemperatureisBelow75° F
Fill the livewell as described above•
Run the livewell pumps on intake mode to add fresh water•
Run the livewell pumps continuously if you have more than 5 pounds of fish in the livewell.
WhenWaterTemperatureisAbove75° F
When surface water temperature increases above 75° F, temperature control with ice, partial water exchange to remove dissolved wastes, and the addition of salt to aid osmotic regula¬tion are essential to maximize survival.
Fill the livewell as described above•
Set the livewell system to operate in recirculating mode•
Cool the livewell water by adding block ice•
As a guide, one 8-pound block (or two frozen half-gallon • milk jugs) of ice cools a 30-gallon livewell 10°F for about 3 hours. Experiment with your boat’s livewell volume and calculate the amount of ice you need to achieve the desired drop in water temperature. Adding one frozen 16oz water bottle every 1-2 hours may be a good starting point.
Block ice melts more slowly than crushed or cube ice, • provides more constant temperature modification and can be easily stored for later use. Don’t be concerned about chlorine in the ice. The little that remains when the ice melts will come out of solution with proper aeration. Be concerned about chlorine if you dont have the proper aeration.
Monitor livewell water temperatures with a plastic aquarium thermometer or install a temperature probe in the livewell.
If you have more than 5 pounds of bass in the livewell, • pump out half of the livewell water every 3 hours, then refill with fresh water from areas with good water quality.
Add ice to lower the temperature to the desired range
SURFACE WATER TEMPERATURE/LIVEWELL WATERTEMPERATURE
75-80° F / 75° F
81-85° F / 78° F
ABOVE 85° F / 80° F
Avoid adding water from stagnant backwaters or shallow areas that may be extremely warm and low in oxygen.
Run the recirculating pumps continuously if you have more than 5 pounds of bass in the livewell.
Additives:
Add non-iodized salt (this is table salt without the iodine, iodized salt will harm the fish) at a rate of 1/3 cup per 5 gallons of livewell water. Pre-measure the salt into plastic bags and carry several with you for later use. Some of the additives like Catch and Release contain this.
If your livewell pump fails:
Add 1oz of hydrogen peroxide for every 3 gallons. There is no need to replace the water after doing this.
Posted Fri Jun 22, 2012 10:09 am