DogTailRed2
Member
I have a strange problem with my 450 litre aquarium.
This aquarium has always been clear but recently had a complete breakdown, substrate change, filter upgrades etc.
Six months down the line the water in the aquarium has developed a dark green tint. I have no algae problems in the tank.
No blanket weed. No string algae. I don't even suffer algae on the glass. The tank is furnished entirely with plastic plants (sorry UKAPS ).
My water parms are Ammonia 0. Nitrite 0. Nitrate 0.5. Phosphate .5. Ph 7 - 7.5. I also tested for copper contamination just in case which is 0.
I perform a 20% water change every week.
Tank is heavily stocked with a mix of Clown Loach. Ancistrous. Some Doras. Barbs. Fish are happy and healthy. Some of the Clowns and Loaches are 16+ years old.
I run Nitra Guard to keep the Nitrates low.
I also changed over time both filters. An FX6 and an Oase 800 Thermo. Both are using Biohome Ultimate. The Oase has a UV clarifier.
When maturing the filters (I ran an old filter while I added each new filter) I added Aqua Bio Balls. These came free with the media.
I have a single Juwel Helialux LED which cycles from 8am to 10pm, sunrise to sunset. It runs fully on between 10 and 5:30 pm.
Things I have tried to cure this problem;
1) Placed a quantity of water in the dark. Three days down the line no apparent change.
2) Adjusted the light profile to have just four hours light to no effect.
3) Added the UV. After four days no apparent change.
4) Trying Blue Exit in some jars to see if that fixes the issue. Two days in no apparent change.
5) tried carbon no effect.
I'm going to try Purigen and Phosgard as a last resort.
Any suggestions on how to fix this issue and how to determine what it is (Bacteria, Algae, something else) ?
Regards,
Ted.
p.s. The images show the affected water left and water from my 260 litre aquarium right. The 260 litre tank has exactly the same setup as the 450 except it doesn't use BioHome Ultimate but just has sponges and Matrix. It even uses the same Juwel LEDs and light profiles. This tank has same parms except higher Phosphates and 40ppm Nitrates. Again fish are happy and healthy.
This aquarium has always been clear but recently had a complete breakdown, substrate change, filter upgrades etc.
Six months down the line the water in the aquarium has developed a dark green tint. I have no algae problems in the tank.
No blanket weed. No string algae. I don't even suffer algae on the glass. The tank is furnished entirely with plastic plants (sorry UKAPS ).
My water parms are Ammonia 0. Nitrite 0. Nitrate 0.5. Phosphate .5. Ph 7 - 7.5. I also tested for copper contamination just in case which is 0.
I perform a 20% water change every week.
Tank is heavily stocked with a mix of Clown Loach. Ancistrous. Some Doras. Barbs. Fish are happy and healthy. Some of the Clowns and Loaches are 16+ years old.
I run Nitra Guard to keep the Nitrates low.
I also changed over time both filters. An FX6 and an Oase 800 Thermo. Both are using Biohome Ultimate. The Oase has a UV clarifier.
When maturing the filters (I ran an old filter while I added each new filter) I added Aqua Bio Balls. These came free with the media.
I have a single Juwel Helialux LED which cycles from 8am to 10pm, sunrise to sunset. It runs fully on between 10 and 5:30 pm.
Things I have tried to cure this problem;
1) Placed a quantity of water in the dark. Three days down the line no apparent change.
2) Adjusted the light profile to have just four hours light to no effect.
3) Added the UV. After four days no apparent change.
4) Trying Blue Exit in some jars to see if that fixes the issue. Two days in no apparent change.
5) tried carbon no effect.
I'm going to try Purigen and Phosgard as a last resort.
Any suggestions on how to fix this issue and how to determine what it is (Bacteria, Algae, something else) ?
Regards,
Ted.
p.s. The images show the affected water left and water from my 260 litre aquarium right. The 260 litre tank has exactly the same setup as the 450 except it doesn't use BioHome Ultimate but just has sponges and Matrix. It even uses the same Juwel LEDs and light profiles. This tank has same parms except higher Phosphates and 40ppm Nitrates. Again fish are happy and healthy.
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