In extreme situations, fish can be seen gasping for oxygen at the water surface or even die of suffocation. Well, for those of you who have this kind of bucks this is the single most effective and reliable solution to this problem. Doesn t work if there is a blackout. Water changes . This is definitely the way to go for most of us, especially if there are no water restrictions in our area.
Water is the only thing that can take large amounts of heat from water.
Of course, you may have to make daily water changes to keep your water temperature within acceptable limits. For smaller tanks, you may have to make two water changes per day. Cheap, no equipment needed, effective and safe. Doesn t rely on electricity. Freezer packs .