What is causing this?

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Jan 29, 2003
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It started about a month or so ago...
I changed the water numerous times.
3 of my fish died(white spots)

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What are your water parameters? Filtration, lighting, etc. Is the tank getting direct sunlight?
 
Aquaclear 300 Filter, 45 Gal Tank, No direct sunlight.

1 Pleco, 1 silver shark, 3 more but I forget the name,
 
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The green color looks like it suggests some type of free floating algae to me. What's the ph, any ni's, ammonia, water hardness, water temp? I had a pond that looked like that. During the summer anyway. Cured it with a bigger filter, bigger pump, and a UV sterilizer. Your filter sounds sufficient though. Where are you getting the water from for your tank?
 
agreeded, Take a sample of water to a LFS and have them do a Phosphate and a Silicate test, these are usally the 2 hidden cause for Algea, unless you are over feeding,

What are your feeding habbits?

For now, Cut down to 1 feeding every other day and do 5% water changes every day..

What you may want to do is do like 5 gallon water changes and in the 5 gallon bucket becouse you are using the Tap water, use a condioner.. as well run a powerhead in it and use some Phosphate remover,
 
Looks scary...
I can't even put my face to close to the glass... Something might suddenly jump at me hehhee

Anything I can buy? Like Water clear solution?

how about algone?
 
Killing the algae chemically will create a load of dead algae in your tank.

Tell us about your lighting. How much? How many hours a day?
 
You have a nutrient imbalance causing free floating algae. You are likely feeding too much. This green water can be dangerous as it can consume lots of oxygen - depleting the oxegyn levels avail for the fish.

First you need to solve your nutrient problem - then clean up the water. try reducing your feedings , vacuum the substrate, clean the filters, etc. Also reduce the time the lights are on.

To get rid of green water - one of these are usually recommended:

A UV Sterilizer, Cleaning with a Diatom filter, or a 72 hour complete blackout.

Most folks don't recommend algaecides as many try to do things naturally - however, if you have no live plants, and if you are diligent to clean your filters / substrate again after using an algaecide, it too would likely clear up the problem

Here is a good article:

http://www.drhelm.com/aquarium/cloudy water.html
 
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