Quote:
Originally Posted by Coralgurl
The sand is new, just added in May/June and is maybe an inch deep.
I will read up on vodka dosing.
Sponges are cleaned and replaced every 3 months.
Something else I didn't mention is there is a film on the surface water.
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Ah ok, since it is shallow, do you vacuum it? That can help quite a bit.
While you're reading up on vodka dosing check out Kalkwasser + vinegar dosing. It is maybe a bit more effective with algae troubles plus vodka dosing requires 1-2x per day dosing where Kalkwasser + vinegar only requires maintenance when you have to refill (weekly, bi-weekly?) although startup costs more.
Sponges should be replaced every week or they will become nitrate factories by housing nitrifying bacteria and trapping detritus. To keep costs down, buy bulk sheets of cut-to-size media.
Try pointing one of the powerheads towards the surface to help with the film.