It may be safe for the fish but it can be dangerous for you if you touch the light.I would say go and buy the plastic cover or lower the water level just in case. Some lamps can get very hot and when something cold contacts them explode. You never know
It's just about right. When the get bigger you can buy another 20 gallon tank and separate the goldfish and ut some other small compatible fish. Then you will end up with two set ups. :)
I bought some krill (dajana pet) which was sealed closed so I thought was ok. I 've been feeding my bettas for a week or so just to find out by accident that the krill expired 5 years ago. -.-
5 YEARS AGO!!! What the ...
Is it harmful for my bettas? They seem to like it very much and it;s...
I am not an expert but i think rocks and sand have nothing to do with pH. They affect ammonia and nitrite levels but as long as you have a filter and do regular cleaning it's ok. You can buy some tests from a pet shop and do it by yourselves. I think the first shop from where you got your fish...