Brew Green Water In A 2ft Tank Options

[sheringam]

Propose brew green water in 2ft tank project

1. 23.5" x 11.5" x 13" fiveplan brand tank
2. 51.81 litres of water (13.71 gallons of water), around 12.5" depth of water
3. 2ft DIY PL lights with 2 36W OSRAM tubes and e-ballast
4. Simple sponge filter to collect goldfish poos
5. Wooden air block for aeration
6. 2 4.5" to 6" ranchus

Is it possible to brew green water in 2ft tank rather than tub? I've all the equipment with me except the PL lights which I've yet to collect from a bro who help DIY PL lights. Will switch on the PL lights non-stop for 3-4 days or until the green water turn dark green?

[CyberET]

try using both lamps instead of one also

if possible better to reduce to square_guy's stocking level maybe max 3 smaller pieces

your aeration sounds alot

erm, ph can be a rough indication of when to change water also, take note of the ph, color and thickness of the green water for a reference as well

as for your filtered tub, biomatt, CR or biohome would be better imho unless u've stacked the bioballs to a min of 18" in height to be effective as a wet/dry system, water flow has to be slow for the wet/dry bioball system to work better, becareful during the cycling of the filter if any fish is in the water as well, ammonia should build up pretty fast

5 small goldfish would be the absolute max for the filtered tub