not too many because they wont be enough space for it to roam
Both fish, and fish tanks, come in different sizes. So the number of fish that ideally should be in a tank, depends. Somewhere between one and a hundred would be normal.
when you clean a fish tank you should only do a 5 or 10% water change. You should wipe any algae off the glass, filter of objects in the tank using a new cloth as any soaps that get in the water will kill the fish. After this the water may be cloudy but the filter should clear this within a few hours. You should never do a 100% water change as this much change will overwhelm the fish and could kill them.
2 or 3
a fish tank size would depend on the size or how many fish you want to put in or if its tropical the tank would have to be measured and remember to get the water tested you don't want to kill the fishs
when you clean a fish tank you should only do a 5 or 10% water change. You should wipe any algae off the glass, filter of objects in the tank using a new cloth as any soaps that get in the water will kill the fish. After this the water may be cloudy but the filter should clear this within a few hours. You should never do a 100% water change as this much change will overwhelm the fish and could kill them.
if there is a black out and you do have a fish tank you should be fine an less you have a chinease fish or any fish that is in the red mark for fish
teeth computer phones fish tank light bulb
I have 6
Only 1. Usually a Betta is all that is kept in a 3 gallon tank
You should change the water in your fish tank every 1-2 weeks to maintain a healthy environment for your fish.
The charcoal filter in a fish tank should be changed every 2-4 weeks to maintain water quality and keep the tank clean for the fish.
You should have it running for about 2-3 days before putting fish in your tank.