120 Fish Gallon Tank

Species of gar:

Florida spotted gar, Lepisosteus platyrhinchus
A highly varied species of gar. Has more spots on its body and a shorter snout than many other gars. Easily mistaken for spotted gar.

Spotted gar, Lepisosteus oculatus
Long snout and spots. Spots to a higher degree towards the posterior of it

Heaters come in sealed submersible or not formats. Get and use the former only. If you need one of two-hundred or more watts, get two of two thirds or so of that wattage each and place them in separate ends of the system, not in a sump. Place the heaters low in the tank (but not undergravel) to facilitate heat diffusion, and prevent you from breaking them. Most heaters are accidentally broken by removing or replacing them when theyre too darn hot! The should be set in the tank water for fifteen minutes plus before plugging in, and unplu

I strongly encourage the use of at least a power filter in conjunction with undergravel and a protein skimmer for the simplest of marine systems.

A note regarding their "biological" filter function; take care to not change all the media in power filters at once. Rotating the floss, etc., back to front in the units water flow will allow for bacterial transference.

Wet-Dry/Trickle Filters:

Are strongly suggested

will enter your system (mainly through the air). By using some, a mix, or all the methods mentioned above for introducing and boosting beneficial bacterial growth, you will realize a progression, growth of bacterial populations that will result in an increase at first of ammonia, then compounds called nitrites (made by bacteria converting, adding oxygen to ammonia), then in turn nitrates (made from further adding oxygen to the nitrites by another group of bacteria). This process of converting ammonia to nitrite to nitrate is termed nitrification. It is the principal way aquari

The stand upon which the tank sits is to be as close to perfectly level (planar) as possible with a tolerance of mere fractions of an inch (a few mm). Imbalanced tanks can place undue pressure on a side or seam and cause a leak. Irregular surfaces (knots, divots, fastener heads poking up, etc.) can cause pressure points and lead to a crack in the glass or acrylic. Likewise, the posts and pillars of the stand should make a large footprint to distribute the weight of the aquarium. Narrow legs or excessive shims c

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You might also want to look at your equipment before you add salt!!!!!
Salt water will deystroy any.