I wanna get mudskippers. I have a 30 gallon. But i dont know how i could set up a filtration. And i was wondering if anyone could help explain. I wanna use a sand bottom and i might use gravel. And it will be a while before i get them. And i wanna have everything how i want it first. And i am thinking of putting a few plants in the tank too. Any help will be very apriciated.