First time caller, long time listener.. I've been a member of sfbaaps and plantedtank.net for over a year, but I rarely post since I get almost all the information I need from searching and try not to bog down forums with questions that have already been asked. Although many of you will see me as new, I'm familiar with many of you already through your writing (sounds creepy, doesn't it?!).
I've read here that new tanks should have their water changed twice a week and fertilized at lower concentrations than EI would call for.. I was wondering what the rationale was for this? Given that the range that nutrients can be dosed is so wide anyway, and the low cost of dry ferts, why keep the concentrations any lower than what would be suggested by EI?
I'm currently running 4x54 watt T5HOs over my tank. the spacing between each set of bulb/reflectors is a bit wide (2 sets of 2x54).. would this be less effective than if the bulb/reflectors were packed closer together, resulting in more overlap of light? The lights run 7 hours per day, with a bubble count of something like 12 bubbles/sec misted through two diffusers.
I'd like to try MH lighting at some point.. would say, 2x70w give a similar output as what I'm currently running?
# of Filters versus Flow-
I only have one canister filter (eheim ecco 2236) right now, but I'm also running a power sponge filter (marine land powerhead 660R) to augment circulation. Should this be replaced with another canister filter, or is the main point of having two canisters in a tank this sized primarily for increased circulation?
Thanks a lot, everyone!