orange brown slime

[j-man the skater-man]

i have a orange brownish slime it spots on my gravel and glass what is it?

[fish_doc]

My guess is it is brown algae. It occours in newly set up tanks and ocassionaly in established tanks.

Other Names: Gravel algae, Silica algae

Color: Brown

Appearance: Begins as brown patches on the gravel and/or glass, then rapidly coats most surfaces of the aquarium with a thin, dark brown coating that is easily removed. Unlike blue-green/slime algae, it does not come off in large slimy sheets.

Cause:
Excess silicates & nitrates

Inadequate light

Low oxygen levels

Brown algae is a common occurrence in a newly set up aquarium. It is generally caused by too little light, an excess of silicates, an abundance of nutrients, and too little oxygen. Silicates can build up through tap water that is high in silicic acid, and silicates that leech from some types of substrates.

Cure:
Wipe off surfaces & vaccine gravel well

Use silicate adsorbing resin in the filter

Increase the lighting

Stock a plecostomus or several otocinclus

This type of algae does not adhere strongly to the tank surfaces, and is easily wiped away. Vacuuming the gravel with a siphon will quickly remove coatings from the substrate. Increasing the lighting will inhibit regrowth of brown algae. As a new tank matures brown algae is often eliminated naturally by plants and green algae competing for nutrients.

Some suckermouth catfish will readily eat brown algae, most notably plecostomus and otocinclus. If the problem is due to high silicates in the water, and the brown algae persists, a special silicate absorbing resin can be used in the filter.

Prevention:
Use of RO water

Regular water changes

Regular aquarium cleaning

Good lighting

As with any algae, keeping the tank clean and performing regular water changes is one of the best preventative measures. Unfortunately it is still possible to get algae in spite of regular maintenance, especially in a newly established aquarium. Prompt attention to sudden algae growth will prevent more serious problems.

I borrowed that from
From Shirlie Sharpe on about.com

[j-man the skater-man]

ok i left the b.a. alone and its still hear after a week or so and i have a bright light(not sure what type or watt) and use conditioned well water so what is my problem?

also i noticed that i hace some white seethru like substance on the half of my tank that is sand, what is it?