The Planted Tank Forum - View Single Post - Cloudy Water Overnight! Help!! UPDATED 12/4
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post #1 of (permalink) Old 11-29-2012, 06:39 PM Thread Starter
Johnny Tang
Algae Grower
Join Date: Nov 2012
Location: Galveston, Texas
Posts: 28
Cloudy Water Overnight! Help!! UPDATED 12/4


Just wanted to update on the problem.
I had to go out of town for the weekend and I was a nervous wreck the whole time thinking about my tank.

When I got home the water was black! Yes, black! When I drained it out the water looked dark purple/black. I have no idea what in the world could cause this but I drained the entire tank and thought that maybe my sand bed hadn't been rinsed enough. I scooped all the sand out and rinsed it about 15-20 times washing the rest of the black out of the bucket. I don't think this was the issue as I had been using the same sand and it didn't turn the water black before but I just wanted to make sure (also wanted to rescape anyways).

I also have replaced the filterpad with a carbon filterpad since the last post thinking that might help. Not sure if it did or not. The filterpad also has a black sludge on it.

When I refilled the aquarium I did not use neutral regulator but just used water conditioner to remove the chlorine. After filling, the tank was crystal clear and looked great. When I woke up this morning the water had clouded a little bit again but not nearly as bad as before.

Any idea why the water might have turned black?

Here's a little background info:

Tank is 13 Gallons
Has Manzanita wood that has been sandblasted, rinsed and buried in the sand so it stays down.

I did a 30% Water change yesterday and I use Seachem Neutral Regulator to get the pH to 7 and eliminate the chlorine from the tap water.

I run an aqueon quietflow 10 without a carbon filter. I know I should probably have one but I am just using a filterpad for now.

The tank is only about 3 weeks old.

Anyways, I woke up this morning and the tank was super cloudy. It looks like dust being blown around in my tank.

My parameters are as follows:
Temp: 78F
Ammonia: 0ppm
Nitrite: 0ppm
Nitrate: 0 ppm
kH: 80ppm
GH: 120ppm

I use API 5 in 1 test strips to test my tank until I can afford an API test kit.

Does anyone have any idea as to what could be making my water cloudy like that? Calcium or something precipitating out of my water?

Last edited by Johnny Tang; 12-04-2012 at 02:06 PM. Reason: Updating on problem
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