Turn off the fish light? - Page 2

Sagensyg · 01-03-2008, 11:09 PM

I would think that having the light on all the time would cause algae to grow faster, and too much of that can definitely be bad for your aquarium. I'd do what Yams said.

Yeah, we had an algae outbreak once, it was terrible. But it's all cleaned now.

Thank you for the advice!

Speaking of fish, I had four Neon Tetras and I always wondered why they were so cheap. I think it's because they always manage to find a way to kill themselves.

Yrkoon · 02:11 AM

fish need to sleep and have a day and night cycle just like us especially if you have any nocturnal catfish etc.

its harmful for the fish if the light is on for 24 hours a day.

i tend to keep my tanks on for about 6-8 hours a day starting from the late after noon or evening.

also algae is actually very good for the water it just looks unsightly to us the reason its good is because it sucks up nitrates out of the water and nitrates aren't to good for fish i believe it also adds some oxygen tho may be wrong on the oxygen point.

edit: algae produces oxygen during the day and carbon dioxide during the night just like any other plant.

fish poops or pees or uneaten food the waste makes ammonia then that turns to nitrites and then gets broken down to nitrates by bacteria in the tank and filters.

ammonia =very bad for fish eg burning gills
nitrites =not as bad
nitrates=not as bad again keep on top with water changes in a cycled tank

a cycled tank should read :

ammonia =0
nitrites =0
nitrates = between 10-20 ppm

The Oscar Spot - The Oscar Spot - Index

have a look at that link theres tons of good information there on fish keeping