i made a mistake on the dimensions of my nft tank its 24x40x12 it is a 50 gallon size rubber made container. i cut the whole top ring off to get the depth down to 12 inches and and the re attached it back with plastic rivets so the lid would fit just as it did before i cut it, it looks like it did when i bought it infact you cant really tell it has been modified. and built a pvc frame exactly like the 6 plant system on ezhydrokit.com only i changed the dimensions a bit (to scale) of course.

now i know that you are supposed to have a verry small depth of constant flow. milimeters i hear? what i figure is since my tank is deep i can adjust the level in the tank acordinly to my plants root size, by adjusting the 130-170gph pump and by using a valve on the drain while still keeping a constant flow. i know i will probably be adjusting the level for a few days until the feeder roots grow enough to set my flow level on the bottom, also i figure why not place a few air lines comming out of pumps down through the top only a few inches just to give it xtra O2 say just 4 lines, i have learned the more O2 the better, i plan to have it running verry soon like in a week but i will be doing a few test runs to check it out.

What do you think ? i can use all the help you can give me. also thanks for the advise on the drain diamater.

i appreciate you communicating with me on this and all others as well.

have a good one !!

jimmy5150guitars