When a perfectly functioning aquarium goes wrong out of sudden, then the following may be the reasons we tend to overlook.
Too much mastic or putty
Mastic on the outside does not affect the water in the aquarium, but mastic or putty on the inside of it and in contact with the water is inadvisable.
Harmful substance
Apart from the non-aquatic rocks, ornaments, etc; harmful substance can be brought in to the aquarium by dirty hands, newly applied nail varnish, dirty cloths, etc. It is surprising how strongly the hands can smell of the kitchen, the garage or of a tin of varnish.
Disease introduced by new fish, plants or live foods
New fish, plants or live foods can sometimes introduce disease to the existing fish. Adding in unsuitable fish that take up too much oxygen (due to their sizes), bullies or even killers might bring problems to the existing community. Furthermore, fish accustomed to aeration will suffer in still water.
Temperature of the water
In case of tropicals, the fluctuation in water temperature can cause problems. The sudden changes in temperature of water can be caused by faulty wiring or perhaps simply that the heater or the thermostat has got buried by drifting sand. The thermostat used might be giving false readings too. In addition, the heating elements might no longer be in good condition.
Besides all the above unsuspected dangers we likely fail to see, we should bear in mind to look into the possibility that the sudden problem to our aquarium might be due to the aquarium being too deep or the source of light being too bright.
Mastic on the outside does not affect the water in the aquarium, but mastic or putty on the inside of it and in contact with the water is inadvisable.
Harmful substance
Apart from the non-aquatic rocks, ornaments, etc; harmful substance can be brought in to the aquarium by dirty hands, newly applied nail varnish, dirty cloths, etc. It is surprising how strongly the hands can smell of the kitchen, the garage or of a tin of varnish.
Disease introduced by new fish, plants or live foods
New fish, plants or live foods can sometimes introduce disease to the existing fish. Adding in unsuitable fish that take up too much oxygen (due to their sizes), bullies or even killers might bring problems to the existing community. Furthermore, fish accustomed to aeration will suffer in still water.
Temperature of the water
In case of tropicals, the fluctuation in water temperature can cause problems. The sudden changes in temperature of water can be caused by faulty wiring or perhaps simply that the heater or the thermostat has got buried by drifting sand. The thermostat used might be giving false readings too. In addition, the heating elements might no longer be in good condition.
Besides all the above unsuspected dangers we likely fail to see, we should bear in mind to look into the possibility that the sudden problem to our aquarium might be due to the aquarium being too deep or the source of light being too bright.
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