Green water??

[Duker]

Originally Posted by ckmullin

The reason why I ask is that it will never go away unless the root causes are looked at.

Does this tank have any sunshine?
How long is your photoperiod? (what lights?)
What sort of substrate do you have?
How much do you feed?
What is your filter?
How much for plant do you have...and what kind of plants?
How often and how much do you do for a water change?
Do you have any other algae growing? GSA, BBA etc.
Do you vacuum your gravel?

1. sunlight: yes some light in morning, but i have blocked out the sun hitting the tank with some background taped to the side(where sun hits).
2. photo period: 830-9pm 12-12.5 hours, 2x24watt 10k T5HO
3. substrate:black flourite
4. filter: rena xp2
5. plants: HC (hemianthus callitrichoides), dwarf 4 leaf clover(marsilea hirsuta)
6. water changes: 30% every 2 weeks. (~10gallons)
7. no other algae growing
8. I only vacume the very top bit, i do not push the siphon hose down into the substrate (as it disturbs my plants).
Does this help?