I now have a 55 and a 20 gallon tank. The 55 is freshwater and the 20 is salt. The 55 houses a Pair of Discus (female snakeskin 5.5", male Red Marlboro 5.0"), the 20 houses 1x Blue Damsel (2.5"), 1x Three Stripe Damsel (2"), and 1x Snowflake Eel (12"). The 55 is a barebottom with 2x 300watt...