Filter making craters in substrate
I just set up a new 20L (thanks petco 1$/gallon) with ADA Amazonia New. Got the wood & substrate in and after the tank cleared I started my filter, but it is making a crater infront of it. The tank is a cheap petco 400gph hob filter, there is no settings on it that i can see to change the water flow. Should I just downgrade my filter or will it eventually stop? I'm planning on a dwarf hairgrass carpet through the whole tank should I just start planting and the roots will solidify the substrate?