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ikcaj 04-23-2011 01:00 PM

Weird white stuff and yellow water
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I've maintained this 30 gal tank successfully for several years. We moved to another state and about four months after set-up I've started having all sorts of issues. Last month it got what I believed to be a fungus, resulting in the death of the majority of the fish and all my snails.

I moved the live ones to a temporary tank and completely re-did this one. Everything is new, filter, gravel, plants, etc. I let it cycle and when things were good I moved the fish back in two weeks ago. Now, as you can see, the water is yellow and I have this white stuff growing on the rocks.

The plants are both fake and live. I worry the heater is getting too hot - the tank stays at 84 when the heater is on low. Probably need to get one with a shut-off. What's the best temp?

I have a 16" air-wand that was in the middle, partially submerged in the gravel but it seemed the fish really had a hard time swimming through the curtain. I moved it over the side.

It currently houses two gourami, four platties, four guppies, a plectostamus and a Chinese algae eater.

redchigh 04-23-2011 01:28 PM

Does the water have an odor? Kinda like rotton eggs?

Stir the substrate and let me know.

ikcaj 04-23-2011 01:33 PM


Originally Posted by redchigh (Post 656510)
Does the water have an odor? Kinda like rotton eggs?

Stir the substrate and let me know.

Nope, just smells like a fish tank, the same way an aquarium store smells. Bbefore I re-did the tank it had an extremely foul odor that permeated most of the house. It was awful.

redchigh 04-23-2011 01:52 PM

then you are overfeeding and/or overstocked. Probably need to vac the gravel real well and up your waterchanges.

ikcaj 05-01-2011 12:31 PM

One week later, very good gravel vac, 50% water change, things looked good for a day and now it's back, in the exact same spot even. Now I have brown algea on the tank glass as well and the ammonia is out of control.

Am I interrupting the cycle by adding Ammonia Lock and Nitraban with each water change? I am NOT changing the filter and only vac'ing the top of the gravel, not stirring it too much because my understanding is good bacteria live there. Maybe I'm wrong?

I just realized, when I re-did the tank I never replaced my charcoal sock - I always kept a drawstring mesh-bag of activating charcoal hanging on the side. Maybe that's the problem?

I have live plants, moneywort and elodea. The elodea is not reproducing in the tank, but seems to be healthy. Maybe I need a new UV bulb? Or do I not want it in my tank?

Byron 05-02-2011 12:44 PM

More information will help, as there could be multiple issues interacting.

Can you post tap water data, namely hardness, pH, ammonia, nitrite and nitrate. Hardness you can ascertain from the water supply folks, and pH to confirm your own test. Ammonia, nitrite and nitrate may be present in the water, this is essential to know. Also, any toxins in the water according to the data from the water folks? Higfh levels of this or that metal can be problematic--safe for humans is often not safe for fish.

Also, what is the pH in the aquarium? And what is the ammonia number? And nitrite and nitrate too please.

The temp at 84F is too hot for those fish, and this makes matters worse because higher temp means less available oxygen so it further stresses the fish, plus the ammonia. Probably also a contributor of plant demise which will further lessen water quality.

The pleco and CAE may be problems, contributing or not now but they will later. What type of pleco and how large is it now?


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