I have a eheim 2227, a fluval 305 and a larger aqua clear HOB on my 75 gallon. If I swap over the HOB and one canister filter to the new tank, about how long would it take dechlorinated tap water to be suitable for my fish to live in? The new tank is coming with two fluval 404s; any recommendations on which combination of filters I should use to keep the new tank clean?
I know heaters vary greatly in efficiency, but roughly how many watts of heating should I shoot for?
My 75 only had two normal output 48" fluorescent tubes over it, and my anubias, swords, java fern, and other misc plants have done fairly well despite the constant loach abuse. I want to upgrade to a HO T5 system for the new tank, but was not sure what size. I know that more watts per gallon is better for my plants, but with loaches in mind, how many watts would be sufficient for this tank? I am currently stuck between a 216watt 48" and a 312 watt 72" AquaticLife fixture. Both got good reviews on marine depot, have built in moonlights, dual timers, etc. While I'd love to spend less money on power and lamp replacements and get the smaller unit, I want my live plants to thrive in the new tank. Budget conscious recommendations highly appreciated!
lastly, on my 75 I used a koralia 4 in addition to my filters to create some much appreciated water movement for the loaches. In the new tank I want to provide the same natural fast moving water feeling for the loaches without doing a full river manifold and I know the koralia 4 wont cut it. What do people use to make good flow in big tanks? Would a single large power head like a koralia magnum 8 do the job or do I need to break the bank here too

I feel like a newbie all over again, but I'm so glad this day finally came. I remember when my 55 gallon felt big, I can't wait to see my loaches swimming around in a tank over three times larger
