Originally Posted by Reece
Hey everyone. Tomorrow I'm getting my first betta and I'm getting a single male! Just one thing, I've watched a few videos and in all of them the water level of the tank doesn't go all the way to the top, and there is a small gap imbetween the surface area and the rim of the tank. About 2cm. Is that gap needed? If so why? Also, how often do I need to do water changes? I have a filter and it is a 10g tank. Thanks for any help!
Hi Reece :)
I would highly recommend reading Betta: Day One http://www.bettafish.com/showthread.php?t=64078
for the majority of questions when new to a Betta.
As for the 2cm gap for waterline to top of tank, I would say it is for displacement of the water if you were to place your hand into the tank. If you place your hand into the tank to place or move something, the extra volume in the tank increases the water line, so the last thing you want is an over flowing tank!
The water changes will depend greatly on what you’re planning to do. Do you plan to cycle using a filter?