420nm Actinic is for use in SW
tanks. It is a bluish light. It provides no benefit to your FW
plants. It wouldn't hurt anything and can actually look pretty cool, but it is a waste of precious lighting real estate over a planted tank. The pinkish hue will come from the 6000-7000K range bulbs. I like a combo of 6500 (or 6700)K
and a 10K. This gives a little of the pinkish/red color mixed in with a very white light. Makes the tank look great.
Careful on overdosing ferts. If you don't have the new light in place and are not running CO2
yet, chances are you will not be N P or K
limited (depending on bioload). Extra nutrients in the water column and significantly contribute to an algae outbreak.
If you stick with dosing ferts, I would check out dry ferts. Much much cheaper in the long run. You can get dry ferts and dose direct into the tank, or mix up your own liquid ferts for easy dosing. The flourish stuff can get expensive quickly. Rex Grigg
sells them for a decent price, along with listing a wealth of information about planted tanks.
, I run a standard pressurized 5 gal CO2
tank with a milwaukee MA957 regulator/needle valve/bubble counter/solenoid, and a Milwaukee SMS 122 pH regulator hooked to the solenoid valve. A lot of people on here use it, and it comes highly recommended. It is currently hooked up to my 5 gal
tank, and I literally have not touched it in over a year. Granted, on a larger tank the co2
tank would require filling every few months (I got about 4 months out of it when it was running on 29G tank). But with the pH meter hooked up, it really is "set it and forget it".