Best light for 28g d&d hq1 nano

[covak2002]

I bought the tank from a guy in exetor he had a radium 20k 150w halide in it and i was told to replace it with a 14k what is best to slow the increase in green algea and still maintain coral and polop colour al i have in the tank is an elaphant ear leather and mushroom with 2 tiger tail seahorses and 2 pain in the arse maroon clowns

all help would be great

many thanks for reading

[acer]

If you don't have any other coral but mushrooms and leather ( softies) - you probably don't even need a MH lights period. BUT, since your setup has one already I doubt changing the Kelvin of the bulb is the problem- maybe just a new bulb is needed as the Spectrum shifts to the red when a bulb gets old which promotes algae growth. Also - if you just bought this tank - then is likely a "new" setup from the move and the nitrates/ ammonia,etc. are high and this algae growth is probably part of the normal "cycling". DO water changes weekly form RO/DI water source - get some reef cleaners, vacuum, pull off by hand what algae you can, and you should be fine in a few months. A Lawnmower Blenny may help as well.

[Ninong]

Hi covak2002,




I think I would stay with a 150w Radium 20,000K if I were you. Either that or go with a 150w Ushio/BLV 10,000K but the appearance won't be as blue without actinic supplementation.