Extreme heat creates problems for fish.  When temperatures are high, fish go into  metabolic overdrive, consume more oxygen and produce more waste products.  These waste products can be more toxic at higher  temperatures.  Here are some simple tips to use when temperatures are extreme:

1. Cool the water 

Add party ice (does not contain Chlorine) or frozen water bottles to help reduce temperatures for species that need cooler temps - but be  careful with Marines, as adding frozen fresh  water in the form of party ice will reduce salinity.

2. Maintain Oxygen Levels 

Ensure that tanks are well aerated to maintain oxygen levels (the hotter the water, the less  oxygen it can carry).  Adding extra airlines will help to increase oxygen exchange.Also check to ensure that filters are working properly, with adequate water flow. 

3. Check Water Parameters 

Make sure that water parameters such as pH are correct.  If you dont already have one then buy yourself a test kit - or take a water sample in to your local pet shop or aquarium for testing.

4. Do not Overstock 

Reduce stocking densities - do not overstock tanks.  Overstocking tanks increases oxygen consumption, which in turns decreases oxygen levels.  Overstocking also increases the amount of waste that your filter system has to cope with.

5. Frequent Water Changes 

More frequent water changes can help by  reducing water temperature (if tap water is colder than the tank) and helps reduce build-up of toxic metabolites.

 6. Reduce Feeding 

Reduce feeding - this can help reduce the  metabolic stress and production of wastes.  

7. Minimise Lighting 

Some lights can emit heat, that will increase the temperature of your tanks even further.  We  recommend that, if possible, lights be turned off on days of extreme heat.  


** Information provided with permission of Just For Pets. Pets Unleashed is a member of the Just For Pets independent pet shop buying group.