need your advice please

[ALang]

My two cents: Light fixtures are expensive. What you've got is great. Use the extra $$ for the vortexes instead.
I spent the money on a whole house A/C and kept the WHOLE family comfortable and heat in the tank down. All I have is a small fan set along with my MH timer to keep my temp down to around 79F.
But prior to installing the A/C, the temps did got up to around 80 to 82, just like yours. Ran like that for years, and no problems as far as I could tell.

[htfn]

Thanks for your all respond
for my heat issue, I am using 4 fans over the main tank. During a hot temp day, my acro lost tisseu badly and they were barely made it. and the other day, I found aqua medic T-5 fixture and I never try only T-5 lighting system. Now I am borrowing current
lighting system from my friend, so I have to get light fixture in the future anyway. so if choose T-5 what is a heat issue? If it is not improve then I can keep my friend's one or use my 250w MH back to the tank.
Thanks again

[reefwars]

Originally Posted by chris88

T5's don't grow sps corals lol. Yeah right tell that to the 100,000 amazing sps reefs grown by T5's. T5's will cover way more coral tissue so will not get the dead spots on the underneath of corals. You can control the spectrum much easier, with less heat issues and the ability to go dusk / dawn. The right 8 bulb t5 fixture would absolutly grow sps faster with better growth then 2 175w or even 2 250w hallides. The only thing halides have over T5 is shimmer, which you can get from adding a couple leds. MH are great but they just dont compare to the new t5 fixtures and bulbs coming out. Why in the world would you want to run a chiller on a reef tank. its just one more thing to worry about that might crash and it wastes energy and space.

and all this is for under a $100 not bad where can i get one???

[daniella3d]

Some of the best sps I have seen around here are owned by a man who run a coral store and all he uses are T5HO.

His display tank has the best colors sps can get.

Maybe your sps has other issues than just your light?

BTW, I use a 250 watt MH on my 75 aquarium and with just 4 little fans the temperature rarely go higher than 78F. Most of the time it stay at 76.5 set by my controller. Of course we run AC in the house and it's not for the aquarium, it's for our own comfort. I cannot stand the heat.

Originally Posted by amoreira

Keep the MH lights, and swap the others with T5HO.

I find that SPS doesn't do well with just T5's (others might weigh in differently, but that's my finding).

As for wave motion, I have MP40W and find it's great for my needs. Hydor's are kind of bulky and the prop breaks easiliy. They don't have anything near of the output that the MP40 does. If you got the bucks go for MP40.