Marbles are traditional saltwater aquarium decorations. They
Are You In Need Of Saltwater Aquarium Decorations? – Brightening Up Your Marine Tank!
So, to answer the question I posed earlier, I think it’s reasonable to say that artificial decorations do have a place in marine aquariums regardless of whether I would welcome them in my own tanks or not. However, if you do choose to use them, first make certain they’re specifically labeled as safe for use in saltwater systems, as not all of them are!
You have the option of creating two types of systems, a fish only system or reef tank system and this decision will impact the decoration of your tank. You must also take into consideration the substrate. While a substrate is not required in a saltwater tank, and some experts say that it will only trap waste and cause the nitrate level to rise, it does provide a certain esthetic appeal.
A fish only system basically consists of fish and not much else. The basic fish-only aquarium set-up usually consists of the tank, filter and lighting. This type of tank contains fish with possibly a little live rock, but no living corals or other invertebrates. You may include some dead coral living rock, inorganic rocks, imitation coral and seashells to dress it up a bit.
Coral and rock can be arranged to simulate a natural environment and include ample hiding areas, ledges, and crevices for the aquarium fish. Placement of the rock and coral should not be so complex that it will be difficult to remove uneaten food or debris during maintenance.
A reef tank consists of fish, corals, invertebrates and other organisms that live in a carefully balanced environment. For example, fish are selected for compatibility not just with each other, but with corals and invertebrates as well (i.e., fish are chosen that will not eat other desirable organisms in the tank). Reef aquariums are not for everyone; they are expensive to set up, furnish, populate and maintain. They are the most time-consuming, type marine systems you can have.
Aquarium Decorations: O.S.I. Marine Rock Aquarium Decoration
Aquarium Decorations: Fish Tank Themes & Ornaments | PetSmart
Realistic Looking Artificial Coral Reef Aquarium Decorations for Marine Fish Aquarium, Saltwater Fish Only with Live Rock Aquarium and Freshwater Fish Tank, Artificial Coral Reef Aquarium Decor has Many Caves and Hideouts for Fish to swim through. Not Limited to Reef Safe Fish anymore.The imaginative marinist can use old mollusc shells, terracota flower pots, ceramic jugs, strong bottles with wide necks, suitable aquarium decorations, to name a few. Obviously, 'alternative' caves must be safe in saltwater and many will appear to be far from authentic as far as the undersea world is concerned!